A versatilechiron approach to the tetrahydropyranyl diarylheptanoid natural products (-)-centrolobine and (+)-centrolobine has been described. The use of an aldol reaction followed by reductive etherification for the formation of tetrahydropyran ring is of importance. diarylheptanoid - tetrahydropyran - centrolobine - aldol reaction - reductive etherification
Stereoselective Construction of 2,6-<i>cis</i>-Disubstituted Tetrahydropyrans via Intramolecular Amide Enolate Alkylation: Total Synthesis of (−)-Centrolobine
作者:Muhammad Latif、Jeong In Yun、Kalapati Seshadri、Hyoung Rae Kim、Chi Hoon Park、Haeil Park、Hyoungsu Kim、Jongkook Lee
DOI:10.1021/acs.joc.5b00046
日期:2015.3.20
A highly stereoselective construction of 2,6-cis-disubstituted tetrahydropyrans was achieved by using an intramolecular amide enolate alkylation with KHMDS. The efficiency and practicality of this methodology was successfully demonstrated in the total synthesis of (−)-centrolobine (1).