Ring A structural modified derivatives of withaferin A and the evaluation of their cytotoxic potential.
Steroids
; 76(10-11): 1213-22, 2011.
Article
in En
| MEDLINE
| ID: mdl-21669217
ABSTRACT
Regio-/stereoselective Michael addition to ring A of withaferin-A was performed using an optimized reaction procedure to synthesise a library of 2,3-dihydro,3-ß-substituted withaferin-A derivatives. The analogues thus obtained were evaluated for in vitro cytotoxicity against various human cancer cell lines. 3-Azido analogue exhibited 35-fold increase (IC(50)=0.02-1.9 µM) in cytotoxicity against almost the entire cell lines tested when compared to the parent molecule. However, further modifications of 3-azido analogue with various alkynes under Husigen's cycloaddition conditions generated a variety of triazole derivatives with reduced cytotoxicity.
Full text:
1
Database:
MEDLINE
Main subject:
Withanolides
Limits:
Humans
Language:
En
Journal:
Steroids
Year:
2011
Type:
Article
Affiliation country:
India