Practical Synthesis of MDM2 Antagonist RG7388. Part 1: A Cu(II)-Catalyzed Asymmetric [3 + 2] Cycloaddition
作者:Lianhe Shu、Chen Gu、Dan Fishlock、Zizhong Li
DOI:10.1021/acs.oprd.6b00320
日期:2016.12.16
An efficient asymmetricsynthesis of MDM2 antagonist RG7388 is reported. The highly functionalized chiral pyrrolidine carboxamide was assembled via a Cu(OAc)2/(R)-BINAP catalyzedasymmetric [3 + 2] cycloaddition, which gave the exo and endo adducts in a ratio of 10:1, with high enantiomeric excess for the exo isomer. A one-pot hydrolysis and retro-Mannich/Mannich isomerization of the cycloaddition