Syntheses and Biological Activity Studies of Novel Sterol Analogs from Nitroso Diels−Alder Reactions of Ergosterol
摘要:
A series of novel sterol analogs was prepared using nitroso Diels-Alder reactions with ergosterol. Most cycloaddition reactions proceeded in an excellent regio- and stereoselective fashion. Further N-O bond cleavage of cycloadducts generated compounds with biological activity in PC-3 and MCF-7 cancer cell lines.
Synthesis of 5-nitropyridin-2-ylazo push-pull derivatives
作者:J. Kreicberga、E. Jecs、V. Kampars
DOI:10.1007/s10593-008-0013-9
日期:2008.1
A practical method has been devised for the synthesis of previously unknown push-pull azochromophores with 5-nitropyridin-2-yl acceptor moiety from 2-amino-5-nitro-1-oxypyridine.