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Enantioselective Total Synthesis of the Cyclophilin-Binding Immunosuppressive Agent Sanglifehrin A

โœ Scribed by Maosheng Duan; Leo A. Paquette


Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
115 KB
Volume
113
Category
Article
ISSN
0044-8249

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Enantioselective Total Synthesis and Stu
โœ Leah C. Konkol; Dr. Fenghai Guo; Dr. Amy A. Sarjeant; Prof. Regan J. Thomson ๐Ÿ“‚ Article ๐Ÿ“… 2011 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 336 KB

Scheme 1. Bismurrayaquinone A (1) and key biphenol 2. Scheme 2. a) PhI(OAc) 2 (1.2 equiv), MeOH, 91 %; b) Me 2 Zn (0.9 equiv), (S,R,R)-phosphoramidite ligand (4.5 mol %), Cu(OTf) 2 (2 mol %), 45-52 %; c) LDA (1.1 equiv); CuCl 2 (1.1 equiv), 63 %; d) BF 3 โ€ขOEt 2 (10 equiv), toluene, reflux, 87 %; e)