Enantioselective Michael/Mannich Polycyclization Cascade of Indolyl Enones Catalyzed by Quinine-Derived Primary Amines
作者:Quan Cai、Chao Zheng、Jun-Wei Zhang、Shu-Li You
DOI:10.1002/anie.201103937
日期:2011.9.5
Three′s a crowd: The title reaction provides a tetracylic core bearing three chiral centers (see scheme; Ts=4‐toluenesulfonyl) with excellent enantioselectivity and good diastereoselectivity. The reaction was used to efficiently construct the (+)‐kreysiginine skeleton.