Enantioselective Synthesis of Spiro[indolizidine-1,3'-oxindoles]

Org Lett. 2017 Aug 4;19(15):4050-4053. doi: 10.1021/acs.orglett.7b01818. Epub 2017 Jul 21.

Abstract

A three-step procedure for the enantioselective synthesis of spiro[indolizidine-1,3'-oxindoles], consisting of a stereoselective cyclocondensation reaction between (S)-tryptophanol and a prochiral or racemic δ-oxoester, bromination of the resulting oxazolopiperidone lactam, and a final stereoselective spirocyclization, is reported.

Publication types

  • Research Support, Non-U.S. Gov't