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1.
Microbiol Resour Announc ; 10(28): e0053821, 2021 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-34264108

RESUMO

The genomes of 15 measles viruses isolated in 2006 to 2017 from patients <16 years of age with fever and skin rashes from four states and two union territories of India were sequenced. Study genomes were phylogenetically analyzed using 143 Indian and global genomes. The study reconfirms two lineages of D4 isolates and three lineages of D8 isolates from India.

2.
Vaccine ; 39(6): 876-881, 2021 02 05.
Artigo em Inglês | MEDLINE | ID: mdl-33423836

RESUMO

Rubella, is a contagious disease caused by Rubella virus (RuV) that manifests as fever with skin-rashes in children and adults along with complications in pregnant women. WHO-SEAR has set a target for Rubella elimination by 2023. This is the first report of antigenic characterization and genome sequencing of nine RuVs sampled during 1992, 2007-9, and 2015-17 from four Indian states. Comparative analysis of Indian RuVs (2B) with that of global isolates and vaccine strain RA 27/3 (1a) revealed that the observed mutations in structural proteins have no major impact on the 3D structure, function and antigenicity. Indian RuVs formed three major clusters (Pune-1992, Kannur-2009 and Chitradurg-2007) in genome-based phylogeny of global isolates. Neutralizing antibody titers in a panel of serum samples from measles negative cases were significantly higher to the vaccine strain compared to a wild-type 2B isolate (Kannur) with concordance of 91.9%, thereby substantiating the use of current vaccines.


Assuntos
Vírus da Rubéola/genética , Vírus da Rubéola/imunologia , Rubéola (Sarampo Alemão) , Adulto , Anticorpos Antivirais , Antígenos Virais , Criança , Feminino , Humanos , Índia/epidemiologia , Gravidez , Rubéola (Sarampo Alemão)/epidemiologia , Rubéola (Sarampo Alemão)/prevenção & controle
3.
J Med Virol ; 91(6): 972-978, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30680754

RESUMO

The Maharashtra State (MS), India, launched measles surveillance in the year 2013. From 2014 to 2017, specimens from the patients presenting with fever and skin rashes were received at the National Institute of Virology, Pune. From 36 districts of the MS, 2795 cases (1428 males and 1367 females) were referred for the laboratory diagnosis of measles and rubella using immunoglobulin M enzyme immunoassay and/or RT-PCRs. The majority of the cases (93.3%, n = 2609) were under 15 years of age. About 17.7% (494) cases had a history of measles immunization (one dose) during their childhood. Virus isolation was attempted from 107 throat swabs and 84 urine samples obtained from 191 cases using Vero hSLAM cells. The results confirmed measles in 1756 and rubella in 282 fever with rash cases by serological and molecular tools. Precisely, 170 of 382 and 35 of 149 specimens were positive for measles and rubella RT-PCRs, respectively. Sequencing of the representative PCR products showed the circulation of measles virus genotypes D4 (n = 26) and D8 (n = 107), and rubella virus genotype 2B (n = 1). Twenty-three measles viruses were isolated and genotyped, of which, 6 were D4 and 17 were D8 genotypes. Amongst the measles-immunized individuals, 51.2% (253/494) had laboratory-confirmed measles. Overall, 72.9% fever with skin rash cases (n = 2038) from the MS was laboratory confirmed for either measles or rubella. The contribution of measles was higher than rubella in the fever with rash cases. As expected, more fever with rash cases were documented in children compared with adults and highlighted the need to increase measles-rubella immunization coverage.


Assuntos
Exantema/diagnóstico , Exantema/virologia , Febre/diagnóstico , Febre/virologia , Adolescente , Adulto , Anticorpos Antivirais/sangue , Criança , Exantema/epidemiologia , Feminino , Febre/epidemiologia , Genótipo , Humanos , Imunização/estatística & dados numéricos , Técnicas Imunoenzimáticas , Imunoglobulina M/sangue , Índia/epidemiologia , Masculino , Sarampo/complicações , Sarampo/diagnóstico , Vírus do Sarampo/genética , Rubéola (Sarampo Alemão)/complicações , Rubéola (Sarampo Alemão)/diagnóstico , Vírus da Rubéola/genética
4.
Food Nutr Bull ; 37(4 suppl): S151-S169, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27909260

RESUMO

BACKGROUND: Nepal has a long tradition of designing good multisectoral nutrition policy. However, success of policy implementation has varied. More evidence on how to successfully carry out multisector nutrition policy is needed. OBJECTIVE: We tracked the influence of Nepal's multisectoral nutrition plan (MSNP) on the process of priority setting and budgeting from 2014 to 2016. METHODS: This study used a mixed-method longitudinal design to track qualitative and budgetary changes related to MSNP processes nationally as well as in 3 districts. Qualitative changes in each study area were assessed through interviews, observation, news content, and meeting notes. Changes in allocations and expenditures were calculated based on budget documents, work plans, and validation interviews. RESULTS: Improved understanding of the MSNP was documented nationally and in study districts but not in VDCs. Human resources, ownership, bottom-up planning, coordination, advocacy, and sustainable structures all emerged as important factors within the enabling environment. Evidence suggests the MSNP influenced improvements in the last 3 factors. We also found notable increases in activities and financing for nutrition-allocations increased steadily between FY 2013-2014 and FY 2015-2016, and 28% of total nutrition allocations in the final year came from new or expanded MSNP-affiliated activities. Data from 3 districts highlight challenges linking local planning and budgeting to central-level structures. CONCLUSIONS: The MSNP appears to have strengthened the nutrition system in Nepal and increased priority and funding for nutrition. Next steps include strengthening linkages to the districts and below. Other countries can learn from the MSNP's success in increasing investment for nutrition.


Assuntos
Organização do Financiamento , Programas Governamentais , Implementação de Plano de Saúde , Desnutrição/prevenção & controle , Política Nutricional , Humanos , Nepal
5.
Indian J Med Res ; 143(2): 227-31, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-27121521

RESUMO

BACKGROUND & OBJECTIVES: Under the outbreak-based measles surveillance in Maharashtra State the National Institute of Virology at Pune receives 3-5 serum samples from each outbreak and samples from the local hospitals in Pune for laboratory diagnosis. This report describes one year data on the measles and rubella serology, virus isolation and genotyping. METHODS: Maharashtra State Health Agencies investigated 98 suspected outbreaks between January-December 2013 in the 20 districts. Altogether, 491 serum samples were received from 20 districts and 126 suspected cases from local hospitals. Samples were tested for the measles and rubella IgM antibodies by commercial enzyme immunoassay (EIA). To understand the diagnostic utility, a subset of serum samples (n=53) was tested by measles focus reduction neutralization test (FRNT). Further, 37 throat swabs and 32 urine specimens were tested by measles reverse transcription (RT)-PCR and positive products were sequenced. Virus isolation was performed in Vero hSLAM cells. RESULTS: Of the 98 suspected measles outbreaks, 61 were confirmed as measles, 12 as rubella and 21 confirmed as the mixed outbreaks. Four outbreaks remained unconfirmed. Of the 126 cases from the local hospitals, 91 were confirmed for measles and three for rubella. Overall, 93.6 per cent (383/409) confirmed measles cases were in the age group of 0-15 yr. Measles virus was detected in 18 of 38 specimens obtained from the suspected cases. Sequencing of PCR products revealed circulation of D4 (n=9) and D8 (n=9) strains. Four measles viruses (three D4 & one D8) were isolated. INTERPRETATION & CONCLUSIONS: Altogether, 94 measles and rubella outbreaks were confirmed in 2013 in the State of Maharasthra indicating the necessity to increase measles vaccine coverage in the State.


Assuntos
Anticorpos Antivirais/sangue , Surtos de Doenças , Sarampo/epidemiologia , Rubéola (Sarampo Alemão)/epidemiologia , Adolescente , Adulto , Pré-Escolar , Feminino , Genótipo , Humanos , Índia/epidemiologia , Lactente , Masculino , Sarampo/sangue , Sarampo/virologia , Vírus do Sarampo/isolamento & purificação , Vírus do Sarampo/patogenicidade , Rubéola (Sarampo Alemão)/sangue , Rubéola (Sarampo Alemão)/virologia , Vírus da Rubéola/isolamento & purificação , Vírus da Rubéola/patogenicidade
6.
Artif Cells Nanomed Biotechnol ; 44(8): 1909-1916, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26631548

RESUMO

Herein, we investigate whether curcumin nanoparticles (Cur NPs) are effective for the treatment of monocrotaline (MCT)-induced pulmonary arterial hypertension in Sprague Dawley rat. Echocardiography was performed at the start of the study and 28 days after MCT injection. Compared to MCT only animals, Cur NP administration was associated with reduced right ventricular (RV) wall thickness and a decreased right ventricle weight/body weight ratio. Cur NPs also attenuated MCT induced increase in RV mRNA expression of TNF-α and IL-1ß. These changes were also associated with decreased RV expression of nitrotyrosine, fibronectin and myosin heavy chain-ß.


Assuntos
Curcumina , Ventrículos do Coração , Hipertensão Pulmonar , Nanopartículas/química , Remodelação Ventricular/efeitos dos fármacos , Animais , Curcumina/química , Curcumina/farmacologia , Ventrículos do Coração/metabolismo , Ventrículos do Coração/fisiopatologia , Hipertensão Pulmonar/complicações , Hipertensão Pulmonar/tratamento farmacológico , Hipertensão Pulmonar/metabolismo , Hipertensão Pulmonar/fisiopatologia , Interleucina-1beta/biossíntese , Masculino , Ratos , Ratos Sprague-Dawley , Fator de Necrose Tumoral alfa/biossíntese
7.
J Prev Med Public Health ; 48(3): 132-41, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-26081650

RESUMO

OBJECTIVES: With recent advances in nanoparticle manufacturing and applications, potential exposure to nanoparticles in various settings is becoming increasing likely. No investigation has yet been performed to assess whether respiratory tract exposure to cerium oxide (CeO2) nanoparticles is associated with alterations in protein signaling, inflammation, and apoptosis in rat lungs. METHODS: Specific-pathogen-free male Sprague-Dawley rats were instilled with either vehicle (saline) or CeO2 nanoparticles at a dosage of 7.0 mg/kg and euthanized 1, 3, 14, 28, 56, or 90 days after exposure. Lung tissues were collected and evaluated for the expression of proteins associated with inflammation and cellular apoptosis. RESULTS: No change in lung weight was detected over the course of the study; however, cerium accumulation in the lungs, gross histological changes, an increased Bax to Bcl-2 ratio, elevated cleaved caspase-3 protein levels, increased phosphorylation of p38 MAPK, and diminished phosphorylation of ERK-1/2-MAPK were detected after CeO2 instillation (p<0.05). CONCLUSIONS: Taken together, these data suggest that high-dose respiratory exposure to CeO2 nanoparticles is associated with lung inflammation, the activation of signaling protein kinases, and cellular apoptosis, which may be indicative of a long-term localized inflammatory response.


Assuntos
Apoptose/efeitos dos fármacos , Pulmão/efeitos dos fármacos , Nanopartículas Metálicas/toxicidade , Proteínas Quinases Ativadas por Mitógeno/metabolismo , Transdução de Sinais/efeitos dos fármacos , Animais , Caspase 3/metabolismo , Cério/química , Inflamação , Pulmão/metabolismo , Pulmão/patologia , Masculino , Nanopartículas Metálicas/química , Proteína Quinase 1 Ativada por Mitógeno/metabolismo , Proteína Quinase 3 Ativada por Mitógeno/metabolismo , Fosforilação/efeitos dos fármacos , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo , Ratos , Ratos Sprague-Dawley , Proteína X Associada a bcl-2/metabolismo , Proteínas Quinases p38 Ativadas por Mitógeno/metabolismo
8.
Environ Monit Assess ; 187(7): 436, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26082423

RESUMO

The sorption and leaching behavior of kresoxim-methyl was explored in four different soils, viz., clay, sandy loam, loamy sand, and sandy loam (saline), representing vegetables and fruits growing regions of India. Adsorption of kresoxim-methyl in all the soils reached equilibrium within 48 h. The rate constants for adsorption and desorption at two different temperatures were obtained from the Lindstrom model, which simultaneously evaluated adsorption and desorption kinetics. The data for rate constants, activation energies, enthalpy of activation, entropy of activation, and free energy indicated physical adsorption of kresoxim-methyl on soil. The relative adsorptivity of the test soils could be attributed to different organic matter and clay contents of the soils. A good fit to the linear and Freundlich isotherms was observed for both adsorption as well as desorption. The groundwater ubiquity score (GUS) for different soils varied between 0 and 2.26. The GUS and leaching study indicated moderately low leaching potential of kresoxim-methyl. The adsorption on four soil types largely depended on the soil physicochemical properties such as organic carbon content, cation-exchange capacity, and texture of the soil.


Assuntos
Fenilacetatos/química , Poluentes do Solo/química , Poluição Química da Água , Adsorção , Silicatos de Alumínio , Argila , Entropia , Índia , Cinética , Metacrilatos/análise , Metacrilatos/química , Fenilacetatos/análise , Medição de Risco , Solo/química , Estrobilurinas , Termodinâmica
9.
J Environ Sci Health B ; 50(2): 90-8, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25587778

RESUMO

The rate of degradation of kresoxim methyl and its effect on soil extra-cellular (acid phosphatase, alkaline phosphatase and ß-glucosidase) and intra-cellular (dehydrogenase) enzymes were explored in four different soils of India. In all the tested soils, the degradation rate was faster at the beginning, which slowed down with time indicating a non-linear pattern of degradation. Rate of degradation in black soil was fastest followed by saline, brown and red soils, respectively and followed 1st or 1st + 1st order kinetics with half-life ranging between 1-6 days for natural soil and 1-19 days for sterile soils. The rate of degradation in natural against sterilized soils suggests that microbial degradation might be the major pathway of residue dissipation. Although small changes in enzyme activities were observed, kresoxim methyl did not have any significant deleterious effect on the enzymatic activity of the various test soils in long run. Simple correlation studies between degradation percentage and individual enzyme activities did not establish any significant relationships. The pattern and change of enzyme activity was primarily due to the effect of the incubation period rather than the effect of kresoxim methyl itself.


Assuntos
Fosfatase Ácida/metabolismo , Fosfatase Alcalina/metabolismo , Fungicidas Industriais/farmacocinética , Oxirredutases/metabolismo , Fenilacetatos/farmacocinética , Poluentes do Solo/farmacocinética , beta-Glucosidase/metabolismo , Poluição Ambiental/análise , Ativação Enzimática , Meia-Vida , Índia , Metacrilatos/farmacocinética , Estrobilurinas
10.
Artigo em Inglês | WPRIM (Pacífico Ocidental) | ID: wpr-188235

RESUMO

OBJECTIVES: With recent advances in nanoparticle manufacturing and applications, potential exposure to nanoparticles in various settings is becoming increasing likely. No investigation has yet been performed to assess whether respiratory tract exposure to cerium oxide (CeO2) nanoparticles is associated with alterations in protein signaling, inflammation, and apoptosis in rat lungs. METHODS: Specific-pathogen-free male Sprague-Dawley rats were instilled with either vehicle (saline) or CeO2 nanoparticles at a dosage of 7.0 mg/kg and euthanized 1, 3, 14, 28, 56, or 90 days after exposure. Lung tissues were collected and evaluated for the expression of proteins associated with inflammation and cellular apoptosis. RESULTS: No change in lung weight was detected over the course of the study; however, cerium accumulation in the lungs, gross histological changes, an increased Bax to Bcl-2 ratio, elevated cleaved caspase-3 protein levels, increased phosphorylation of p38 MAPK, and diminished phosphorylation of ERK-1/2-MAPK were detected after CeO2 instillation (p<0.05). CONCLUSIONS: Taken together, these data suggest that high-dose respiratory exposure to CeO2 nanoparticles is associated with lung inflammation, the activation of signaling protein kinases, and cellular apoptosis, which may be indicative of a long-term localized inflammatory response.


Assuntos
Animais , Masculino , Ratos , Apoptose/efeitos dos fármacos , Caspase 3/metabolismo , Cério/química , Inflamação , Pulmão/efeitos dos fármacos , Nanopartículas Metálicas/química , Proteína Quinase 1 Ativada por Mitógeno/metabolismo , Proteína Quinase 3 Ativada por Mitógeno/metabolismo , Proteínas Quinases Ativadas por Mitógeno/metabolismo , Fosforilação/efeitos dos fármacos , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo , Ratos Sprague-Dawley , Transdução de Sinais/efeitos dos fármacos , Proteína X Associada a bcl-2/metabolismo , Proteínas Quinases p38 Ativadas por Mitógeno/metabolismo
11.
Biomaterials ; 35(37): 9951-9962, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25224369

RESUMO

Cerium oxide (CeO2) nanoparticles have been posited to exhibit potent anti-oxidant activity which may allow for the use of these materials in biomedical applications. Herein, we investigate whether CeO2 nanoparticle administration can diminish right ventricular (RV) hypertrophy following four weeks of monocrotaline (MCT)-induced pulmonary arterial hypertension (PAH). Male Sprague Dawley rats were randomly divided into three groups: control, MCT only (60 mg/kg), or MCT + CeO2 nanoparticle treatment (60 mg/kg; 0.1 mg/kg). Compared to the control group, the RV weight to body weight ratio was 45% and 22% higher in the MCT and MCT + CeO2 groups, respectively (p < 0.05). Doppler echocardiography demonstrated that CeO2 nanoparticle treatment attenuated monocrotaline-induced changes in pulmonary flow and RV wall thickness. Paralleling these changes in cardiac function, CeO2 nanoparticle treatment also diminished MCT-induced increases in right ventricular (RV) cardiomyocyte cross sectional area, ß-myosin heavy chain, fibronectin expression, protein nitrosylation, protein carbonylation and cardiac superoxide levels. These changes with treatment were accompanied by a decrease in the ratio of Bax/Bcl2, diminished caspase-3 activation and reduction in serum inflammatory markers. Taken together, these data suggest that CeO2 nanoparticle administration may attenuate the hypertrophic response of the heart following PAH.


Assuntos
Antioxidantes/uso terapêutico , Cério/uso terapêutico , Hipertensão Pulmonar/induzido quimicamente , Hipertensão Pulmonar/complicações , Hipertrofia Ventricular Direita/tratamento farmacológico , Hipertrofia Ventricular Direita/etiologia , Nanopartículas/uso terapêutico , Animais , Ventrículos do Coração/efeitos dos fármacos , Ventrículos do Coração/patologia , Hipertrofia Ventricular Direita/patologia , Masculino , Monocrotalina , Nanopartículas/ultraestrutura , Ratos , Ratos Sprague-Dawley
12.
Environ Monit Assess ; 186(4): 2369-74, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24287718

RESUMO

A field dissipation study was conducted to evaluate the pre-harvest interval (PHI) and processing factor (PF) for kresoxim methyl (Ergon 44.3 SC) residues in grapes and during raisin making process at recommended dose (RD) and double the recommended dose (DRD). Kresoxim methyl residues dissipated following 1st-order kinetics with a half-life of 10 and 18 days at RD and DRD, respectively. The PHIs with respect to the European Union maximum residue limit (EU-MRL) of 1 mg kg(-1) for grapes were 13 and 30 days at RD and DRD, respectively. The degradation data during grape to raisin making process were best fitted to nonlinear 1st + 1st-order kinetics with a half-life ranging between 4 and 8 days for both shade drying and with raisin dryer at different doses. The PFs were 1.19 and 1.24 with shade drying and 1.09 and 1.10 with raisin dryer, respectively, which indicates concentration of the residues during raisin making process. The dietary exposure of kresoxim methyl on each sampling day was less than the respective maximum permissible intake both at RD and DRD. The residues of kresoxim methyl in market samples of grapes and raisins were well below the EU-MRL and were also devoid of any risk of acute toxicity related to dietary exposure.


Assuntos
Monitoramento Ambiental , Fungicidas Industriais/análise , Resíduos de Praguicidas/análise , Fenilacetatos/análise , Vitis/química , União Europeia , Contaminação de Alimentos/análise , Contaminação de Alimentos/estatística & dados numéricos , Fungicidas Industriais/química , Meia-Vida , Cinética , Metacrilatos/análise , Metacrilatos/química , Resíduos de Praguicidas/química , Fenilacetatos/química , Medição de Risco , Estrobilurinas
13.
Artigo em Inglês | MEDLINE | ID: mdl-24046717

RESUMO

In the title mol-ecule, C15H11Cl2NOS, the dihedral angle between the phenyl and benzene rings is 72.24 (1)°. In the crystal, pairs of N-H⋯S hydrogen bonds form dimers with twofold rotational symmetry. The dimers are connected by weak C-H⋯O hydrogen bonds, forming a two-dimensional network parallel to (001). An intra-molecular O-H⋯S hydrogen bond is also observed.

14.
Acta Crystallogr Sect E Struct Rep Online ; 69(Pt 5): o653, 2013 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-23723817

RESUMO

In the title compound, C11H12N2O, the dihedral angle between the acetamide group and the benzene ring is 68.7 (1)°. In the crystal, N-H⋯O and weak C-H⋯O hydrogen bonds link the mol-ecules into chains along the a-axis direction.

15.
J Med Virol ; 85(8): 1426-32, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23657908

RESUMO

Two separate outbreaks of fever with parotitis were reported from the Apsinga and Pimpla villages in the Osmanabad district of the Maharashtra State, India during February and March 2012. Meningo-encephalitis was noted in two patients resulting in the death of an 11-year male. Samples of blood and throat swabs were collected from patients with fever and parotitis. Serum samples from suspected (n=62) and convalescent (n=19) patients were tested for mumps virus specific IgM and/or IgG antibodies. Mumps virus specific IgM antibodies were detected in 44 of 62 serum samples (71%). Of the 19 convalescent phase sera 16 had both, anti-mumps virus IgM and IgG antibodies. Twenty-eight throat swabs collected from patients with parotitis were tested by RT-PCR for the SH gene. Twenty-three specimens were found to be positive and nucleotide sequencing of the amplified PCR products revealed circulation of two distinct genotypes that were village specific. Mumps virus genotype C (n=18) was detected in Apsinga village and genotype G (n=5) in Pimpla village. Two mumps virus isolates were also obtained using Vero cells. This is the first report from India confirming simultaneous circulation of mumps virus genotype C in one village and the G genotype in another village only 37 km away.


Assuntos
Surtos de Doenças , Vírus da Caxumba/classificação , Vírus da Caxumba/genética , Caxumba/epidemiologia , Caxumba/virologia , RNA Viral/genética , Adolescente , Adulto , Idoso , Anticorpos Antivirais/sangue , Criança , Pré-Escolar , Feminino , Genótipo , Humanos , Imunoglobulina G/sangue , Imunoglobulina M/sangue , Índia/epidemiologia , Lactente , Masculino , Pessoa de Meia-Idade , Epidemiologia Molecular , Dados de Sequência Molecular , Vírus da Caxumba/isolamento & purificação , Faringe/virologia , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Análise de Sequência de DNA , Adulto Jovem
16.
Acta Crystallogr Sect E Struct Rep Online ; 69(Pt 1): o100, 2013 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-23476363

RESUMO

In the title mol-ecule, C24H29NO4, the central ring of the acridinedione system adopts a flat boat conformation and the four essentially planar atoms of this ring [maximum deviation = 0.001 (2) Å] form a dihedral angle of 85.99 (12)° with the benzene ring. The two outer rings of the acridinedione system adopt sofa conformations. In the crystal, O-H⋯O and N-H⋯O hydrogen bonds link the mol-ecules, forming a two-dimensional network parallel to (100).

17.
Acta Crystallogr Sect E Struct Rep Online ; 69(Pt 1): o101, 2013 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-23476364

RESUMO

In the title mol-ecule, C23H26FNO2, the central ring of the acridinedione system adopts a slight boat conformation and the four essentially planar atoms of this ring [maximum deviation = 0.019 (1) Å] form a dihedral angle of 89.98 (6)° with the benzene ring. The two outer rings of the acridinedione system adopt sofa conformations. In the crystal, N-H⋯O hydrogen bonds link the mol-ecules, forming chains along [001].

18.
Acta Crystallogr Sect E Struct Rep Online ; 69(Pt 1): o105, 2013 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-23476367

RESUMO

In the title mol-ecule, C19H18F3N3O, the dihydro-pyridine and cyclo-hexene rings both adopt sofa conformations. The five essentially planar atoms of the dihydro-pyridine ring [maximum deviation = 0.039 (2) Å] form a dihedral angle of 88.19 (8)° with the benzene ring. The F atoms of the trifluoro-methyl group were refined as disordered over two sets of sites in a 0.840 (3):0.160 (3) ratio. In the crystal, N-H⋯O and N-H⋯N hydrogen bonds link mol-ecules into a two-dimensional network parallel to (100).

19.
Acta Crystallogr Sect E Struct Rep Online ; 69(Pt 3): o417-8, 2013 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-23476593

RESUMO

In the title mol-ecule, C19H17F3N2O2, the fused cyclo-hexene and pyran rings adopt sofa and flattened boat conformations, respectively. The four essentially planar atoms of the pyran ring [maximum deviation = 0.008 (2) Å] form a dihedral angle of 88.13 (9)° with the benzene ring. The F atoms of the trifluoro-methyl group were refined as disordered over three sets of sites in a 0.507 (7):0.330 (7):0.163 (3) ratio. In the crystal, mol-ecules are connected into inversion dimers via pairs of N-H⋯N hydrogen bonds and these dimers are further linked by N-H⋯O hydrogen bonds into a two-dimensional network parallel to (100).

20.
Acta Crystallogr Sect E Struct Rep Online ; 69(Pt 3): o433, 2013 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-23476604

RESUMO

In the title moleclue, C6H7N3, the mean plane of the dimethyl-amino group [maximum deviation = 0.006 (2) Å] forms a dihedral angle of 7.95 (18)° with the mean plane of the propane-dinitrile fragment [maximum deviation = 0.008 (2) Å]. In the crystal, weak C-H⋯N hydrogen bonds link the mol-ecules into a three-dimensional network.

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