A concise approach for the synthesis of bitungolides: total syntheses of (−)-bitungolide B & E
作者:K. Mahender Reddy、J. Shashidhar、Subhash Ghosh
DOI:10.1039/c4ob00250d
日期:——
The first total synthesis of (−)-bitungolide B and a second-generation total synthesis of (−)-bitungolide E are described. The cornerstone of the approach comprises a convergent and flexible route involving Brown crotylation, highly diastereoselective substrate controlled Paterson anti-aldol reaction, hydroxyl-directed 1,3-syn/anti reduction, Barton–McCombie deoxygenation and RCM reactions. Via this
描述了(-)-比通内酯B的第一全合成和(-)-比通内酯E的第二代全合成。该方法的基础包括一条收敛灵活的路线,其中包括布朗酰化,高度非对映选择性底物控制的帕特森抗羟醛反应,羟基定向的1,3-顺式/反还原,巴顿-麦康比脱氧和RCM反应。通过这种途径,可以容易地使用通用中间体13来合成比通戈利德A–E和富兰克林奈德A–C家族。