用户名: 密码: 验证码:
Regio- and stereoselective modification of cytosine with cyanopropargylic alcohols
详细信息    查看全文
文摘
Cyanopropargylic alcohols (4-hydroxyalk-2-ynenitriles) add cytosine at the triple bond under mild conditions (3–5 mol% K2CO3, DMF, 20–25 °C, 2–3 h) to afford regio- and stereoselectively the Michael adducts, (Z)-3-[4-amino-2-oxo-1(2H)-pyrimidinyl]-4-hydroxy-4-alkylalk-2-enenitriles, in80–88% yield.

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700