3 výsledky
Nine new monoterpenoid indole alkaloids, ervatamines A-I (1-9), and five known ones (10-14), were isolated from Ervatamia hainanensis. The new structures were elucidated by extensive spectroscopic analysis and comparison to known compounds. Their absolute configurations were determined by various
A new bisindole alkaloid, 19,20-dihydroervahanine A was isolated from the stems of Ervatamia coronaria grown in Brazil, together with five known alkaloids: coronaridine, heyneanine, voacristine, voacamine, descarbomethoxyvoacamine and five phenolic acids: vanillic, gentisic, syringic,
Valdecoxib is a new anti-inflammatory drug that is highly selective for inhibition of the inducible form of cyclooxygenase (COX-2). In the present study, biotransformation of valdecoxib was investigated in cell cultures of five medicinal plants, viz., Catharanthus roseus, Azadirachta indica,