引用本文:
Shams-uz-zaman, Tabassum Siddiqui, Mohd. Gulfam Alam, Najmul Islam, Lin Bai. A two step facile synthesis of new steroidal linear and angular pyranones having anti-mycobacterial activity[J]. Chinese Chemical Letters,
2009, 20(2): 153-157.
doi:
10.1016/j.cclet.2008.10.049
Citation: Shams-uz-zaman, Tabassum Siddiqui, Mohd. Gulfam Alam, Najmul Islam, Lin Bai. A two step facile synthesis of new steroidal linear and angular pyranones having anti-mycobacterial activity[J]. Chinese Chemical Letters, 2009, 20(2): 153-157. doi: 10.1016/j.cclet.2008.10.049
Citation: Shams-uz-zaman, Tabassum Siddiqui, Mohd. Gulfam Alam, Najmul Islam, Lin Bai. A two step facile synthesis of new steroidal linear and angular pyranones having anti-mycobacterial activity[J]. Chinese Chemical Letters, 2009, 20(2): 153-157. doi: 10.1016/j.cclet.2008.10.049
A two step facile synthesis of new steroidal linear and angular pyranones having anti-mycobacterial activity
摘要:
Title compounds 2',2'-dimethylcholesta-2,4-dien[3,2-b]-pyran-4'-one (3), 2',2'-dimethyl-3β-substituted cholesta-4,6-dien[7,6-b]-pyran-4'-one (6a,b) and (6c) were prepared by the cyclization of 2-acetylcholesta-2,4-dien-3-ol (2), 6-acetyl-3β-substitutedcholesta-4,6-dien-7-ol (5a,b) and (5c) respectively, with pyrrolidine, dry benzene and dry acetone using Dean Stark separator through conventional heating. Furthermore, compounds were also found to be active against Mycobacterium tuberculosis.
English
A two step facile synthesis of new steroidal linear and angular pyranones having anti-mycobacterial activity
Abstract:
Title compounds 2',2'-dimethylcholesta-2,4-dien[3,2-b]-pyran-4'-one (3), 2',2'-dimethyl-3β-substituted cholesta-4,6-dien[7,6-b]-pyran-4'-one (6a,b) and (6c) were prepared by the cyclization of 2-acetylcholesta-2,4-dien-3-ol (2), 6-acetyl-3β-substitutedcholesta-4,6-dien-7-ol (5a,b) and (5c) respectively, with pyrrolidine, dry benzene and dry acetone using Dean Stark separator through conventional heating. Furthermore, compounds were also found to be active against Mycobacterium tuberculosis.
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