4,5-Disubstituted cis-pyrrolidinones as inhibitors of 17β-hydroxysteroid dehydrogenase II. Part 1: Synthetic approach
摘要:
17beta-Hydroxysteroid dehydrogenase II (17beta-HSD II) antagonists may provide an important way into preventing the onset of osteoporosis. The discovery of 4,5-disubstituted eis-pyrrolidinones as 17beta-HSD II inhibitors led to the development of an efficient intramolecular Michael addition, followed by catalytic hydrogenation to obtain the desired cis configuration. (C) 2005 Elsevier Ltd. All rights reserved.