Asymmetric Total Synthesis of (+)-Dragmacidin D Reveals Unexpected Stereocomplexity

The first asymmetric total synthesis of the bis-indole marine alkaloid (+)-dragmacidin D (1) has been achieved. This synthesis revises an earlier configurational assignment based on biosynthetic considerations and assigns an R absolute configuration to (+)-1. The current studies reveal that natural dragmacidin D is isolated as either a racemate or a scalemic mixture (39% ee).http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000351558100046&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Chemistry, OrganicSCI(E)PubMed1ARTICLEr.capon@uq.edu.au; yxjia@bjmu.edu.cn61529-15321