Microwave promoted one-pot synthesis of novel A-ring fused steroidal dehydropiperazines

被引:21
|
作者
Borthakur, Moyurima [1 ]
Barthakur, Madan G. [1 ]
Boruah, Romesh C. [1 ]
机构
[1] NE Inst Sci & Technol, Div Med Chem, Jorhat 785006, Assam, India
关键词
fused steroids; ethylenediamine; dehydropiperazine; microwave;
D O I
10.1016/j.steroids.2008.01.005
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The preparation of ring-A fused steroidal dehydropiperazine at the 3,4-position is herein described. The novel steroidal dehydropiperazines were prepared from the annulation reaction of ethylenediamine with 3-keto-4-en steroids in a one-pot reaction under microwave irradiation. The key step involves base catalysed aerial oxidation of the C-6 methylene group followed by cyclocondensation of ethylenediamine via Michael addition reaction. (C) 2008 Elsevier Inc. All rights reserved.
引用
收藏
页码:539 / 542
页数:4
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