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.
Decarboxylative/Oxidative Amidation of Aryl α-Ketocarboxylic Acids with Nitroarenes and Nitroso Compounds in Aqueous Medium
作者:Dinesh S. Barak、Dipak J. Dahatonde、Shashikant U. Dighe、Ruchir Kant、Sanjay Batra
DOI:10.1021/acs.orglett.0c03666
日期:2020.12.4
of aryl α-ketocarboxylic acids with 5-aryl-3-nitroisoxazole-4-carboxylates and substituted dinitrobenzenes under oxidative aqueous conditions to afford N-aryl amides is described. The reaction is suggested to proceed via a radical pathway in which a benzoyl nitroxyl radical, the key intermediate formed from reaction between nitroarene and benzoyl radical from glyoxalic acid, couples with hydroxyl radical
Conversion of a primary amino group into a nitroso group. Synthesis of nitroso-substituted heterocycles
作者:Edward C. Taylor、Chi Ping Tseng、Jang B. Rampal
DOI:10.1021/jo00342a035
日期:1982.1
Syntheses and Biological Activity Studies of Novel Sterol Analogs from Nitroso Diels−Alder Reactions of Ergosterol
作者:Baiyuan Yang、Patricia A. Miller、Ute Möllmann、Marvin J. Miller
DOI:10.1021/ol900997t
日期:2009.7.2
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.