1.
Chem Biodivers
; 3(2): 175-9, 2006 Feb.
Artigo
em Inglês
| MEDLINE
| ID: mdl-17193255
RESUMO
Two new ent-clerodane-type diterpenoids, compounds 1 and 2, were isolated from the aerial parts of Pulicaria wightiana, together with three known constituents. Their structures were established based on spectroscopic data, and their antibacterial activities were evaluated (Table 2).
Assuntos
Diterpenos Clerodânicos/isolamento & purificação , Diterpenos/isolamento & purificação , Componentes Aéreos da Planta , Pulicaria , Antibacterianos/química , Antibacterianos/isolamento & purificação , Diterpenos/química , Diterpenos Clerodânicos/química , Testes de Sensibilidade Microbiana , Componentes Aéreos da Planta/microbiologia , Extratos Vegetais/química , Extratos Vegetais/isolamento & purificação , Pulicaria/microbiologia
2.
Chem Pharm Bull (Tokyo)
; 54(3): 403-5, 2006 Mar.
Artigo
em Inglês
| MEDLINE
| ID: mdl-16508203
RESUMO
2-Benzoxepines have efficiently been synthesized from Morita-Baylis-Hillman adducts, alkyl 3-aryl-3-hydroxy-2-methylenepropanoates by treatment with HCHO catalyzed by silica supported perchloric acid (HClO4.SiO2) or Amberlyst-15 in CH2Cl2 under reflux for a short period of time (1.5-2.5 h). The catalyst can be recovered and recycled. The antibacterial properties of the new 2-benzoxepines were studied but no activity was found.
