1.
Chem Biodivers
; 3(2): 175-9, 2006 Feb.
Artículo
en Inglés
| MEDLINE
| ID: mdl-17193255
RESUMEN
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).
Asunto(s)
Diterpenos de Tipo Clerodano/aislamiento & purificación , Diterpenos/aislamiento & purificación , Componentes Aéreos de las Plantas , Pulicaria , Antibacterianos/química , Antibacterianos/aislamiento & purificación , Diterpenos/química , Diterpenos de Tipo Clerodano/química , Pruebas de Sensibilidad Microbiana , Componentes Aéreos de las Plantas/microbiología , Extractos Vegetales/química , Extractos Vegetales/aislamiento & purificación , Pulicaria/microbiología
2.
Chem Pharm Bull (Tokyo)
; 54(3): 403-5, 2006 Mar.
Artículo
en Inglés
| MEDLINE
| ID: mdl-16508203
RESUMEN
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.
