Termination of Mn(III)-Based Oxidative Cyclizations by Trapping with Azide
作者:Barry B. Snider、Jeremy R. Duvall
DOI:10.1021/ol049805s
日期:2004.4.1
The radicals formed in Mn(III)-based oxidative free-radical cyclizations of beta-keto esters and malonate esters can be trapped with sodium azide and Mn(III) to give cyclic and bicyclic azides in 30-80% yield. Reduction of the azide gives bi- and tricyclic lactams. [reaction: see text]
Studying the synthesis of nupharamine, a minor alkaloid isolated from Nuphar japonicum DC, N-methylnupharamine was synthesized and its stereoisomers were characterized.
The synthesis of 1RS,4SR,5RS-4-(4,8-dimethyl-5-hydroxy-7-nonen-1-yl)-4-methyl-3,8-dioxabicy clo[3.2.1]octane-1-acetic acid and related compounds is described. The above acetic acid compound and its isomer are contragestational agents.
Total synthesis of 1RS,4SR,5RS-4-(4,8-dimethyl-5-hydroxy-7-nonen-1-yl)-4-methyl-3,8-dioxabicyclo(3.2.1)octane-1-acetic acid and related compounds
申请人:ORTHO PHARMACEUTICAL CORPORATION
公开号:EP0039595A1
公开(公告)日:1981-11-11
The synthesis of 1RS, 4SR, 5RS-4-(4,8-dimethyl-5-hydroxy-7-nonen-1-yl)-4-methyl-3,8-dioxabicyclo[3.2.1]octane-1-acetic acid
and related compounds is described and their pharmacological activities are described.