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1.
Curr Top Med Chem ; 16(22): 2509-20, 2016.
Article in English | MEDLINE | ID: mdl-26873187

ABSTRACT

In the present study an efficient strategy for the synthesis of thiazole and thiadiazole derivatives was developed and clubbed together both of the substituted nucleus to form the analogues of combretastatin A-4 (tubulin polymerization inhibitors.). Synthesis was started by the reaction of substituted benzoic acid with thionyl chloride followed by the reaction with hydrazine, p-chloro benzaldehyde and thioglycolic acid to form substituted thiazole derivatives. On the other side hydrazides were reacted with ammonium thiocyanate and strong acid to form substituted thiadiazole compounds. Finally thiazole and thiadiazole compounds were clubbed with the help of dioxan and triethylamine. All novel derivatives (TH01-TH40) were screened for their cytotoxicity activity using MTT assay against three cancer cell lines viz. A-549 (lung carcinoma), HT-29 (colon carcinoma), HeLa (cervix carcinoma). Compounds TH08 exhibited highest activity, due to the presence of trimethoxy substitution on phenyl ring. In QSAR study these results were correlated with physicochemical parameters and the correlation of XlogP, kaapa2, Quadrupole1 with cytotoxic activity on A-549 (lung carcinoma) was found highest (r2: 0.941; F: 99.103; Se: 0.0006). In docking study binding of active molecule (TH08) was found very well with α, ß tubulin (PDB: 1SA0) protein.


Subject(s)
Antineoplastic Agents/chemical synthesis , Antineoplastic Agents/pharmacology , Benzamides/chemical synthesis , Benzamides/pharmacology , Tubulin Modulators/chemical synthesis , Tubulin Modulators/pharmacology , Antineoplastic Agents/chemistry , Benzamides/chemistry , Cell Line, Tumor , Humans , Molecular Docking Simulation , Quantitative Structure-Activity Relationship , Tubulin Modulators/chemistry
2.
Indian J Pharm Sci ; 72(6): 781-4, 2010 Nov.
Article in English | MEDLINE | ID: mdl-21969753

ABSTRACT

A selective and sensitive, stability-indicating reverse phase high performance liquid chromatography method has been first developed and validated for the estimation of miglitol in bulk and tablet dosages form. Samples were separated on a prepacked, Inertsil amino C(18) column (150×4.6 mm i.d.) using a mobile phase comprised of acetonitrile and monobasic sodium phosphate pH 7.5 (80:20, v/v) delivered at 1.5 ml/min flow rate. Detection was performed on a SPD-20A prominence UV/Vis detector at 220 nm. The retention time for miglitol was 13.93±0.0367. The method was validated in terms of linearity, precision, accuracy, ruggedness, and specificity, limit of detection and limit of quantification. The linearity (r(2)) and percentage recoveries of miglitol were 0.9986 and 99.85%. This method is suitable for routine estimation of miglitol in bulk and tablet dosages form.

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