Novel Domino Cyclization of Tryptophan-Derived Amino Nitriles: Scope and Stereoselectivity
作者:Juan A. González-Vera、M. Teresa García-López、Rosario Herranz
DOI:10.1021/jo051441+
日期:2005.10.1
acid-promoted cyclization of new tryptophan-based α-amino nitriles derived from either ketones or aldehydes to novel hexahydropyrrolo[1‘,2‘,3‘:1,9a,9]imidazo[1,2-a]indoles is described. This cyclization involves the generation of two or three stereogenic centers. The time and stereoselectivity of this reaction mostly depended on both the steric volume of the substituents at the aminonitrile and its stereochemistry