Acetylenic Inhibitors of C-22 Hydroxylase of Ecdysone Biosynthesis
摘要:
Acetylenic derivatives of cholesterol designed to be inhibitors of ecdysteroid biosynthesis were prepared. The side chains of these compounds differ additionally from that of cholesterol by stereochemical modifications at C-17 and C-20. A bicyclic acetylenic compound containing the partial structure of the C and D rings of the cholesterol nucleus was also synthesized. These compounds were devised with the aim of inhibiting the C-22 hydroxylation of ecdysone biosynthesis by a suicide substrate mechanism. One of these molecules inhibits very efficiently the synthesis of ecdysone in prothoracic glands in vitro. (C) 1994 Academic Press, Inc.