Total syntheses of epothilones B and D: applications of allylstannanes in organic synthesis
作者:Nathaniel Martin、Eric J Thomas
DOI:10.1016/s0040-4039(01)01795-6
日期:2001.11
syntheses of the alcohol 16, a total synthesis of epothilones B and D is reported in which the trisubstituted 12,13-double-bond is introduced stereoselectively using the tin(IV) bromide-promoted reaction between the allylstannane 22 and the aldehyde 17. A Barton deoxygenation then gave the C(7)C(15) fragment 25. After development of the thiazole containing side-chain, an aldol condensation with the ethyl