A two step facile synthesis of new steroidal linear and angular pyranones having anti-mycobacterial activity

Title compounds 2′,2′-dimethylcholesta-2,4-dien[3,2-b]-pyran-4′-one ( 3), 2′,2′-dimethyl-3 β-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-3 β-substitutedcholesta-4,6-dien-7-ol ( 5a, b) and ( 5c)...

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Veröffentlicht in:	Chinese chemical letters 2009-02, Vol.20 (2), p.153-157
Hauptverfasser:	Shams-uz-zaman, Siddiqui, Tabassum, Alam, Mohd. Gulfam, Islam, Najmul
Format:	Artikel
Sprache:	eng
Schlagworte:	Acetyl chloride Acetyl hydroxy derivative of steroids Anti-mycobacterial activity Dean Stark separator Pyrrolidine Steroidal linear and angular pyranones
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