作者:Daniel Solé、Josep Bonjoch、Silvina García-Rubio、Emma Peidró、Joan Bosch
DOI:10.1002/(sici)1521-3773(19990201)38:3<395::aid-anie395>3.0.co;2-5
日期:1999.2.1
Fifteen steps suffice for an enantioselective total synthesis of (-)-strychnine (1) from 1,3-cyclohexanedione. The key steps are the easy generation of the enantiopure intermediate 2, the closure of the piperidine ring by a reductive Heck reaction, and the elaboration of the indoline nucleus in an advanced synthetic stage. TBDMS=tert-butyldimethylsilyl.
从1,3-环己二酮对映体选择性合成15个步骤就足够了。关键步骤是易于生成对映纯中间体2,通过还原性Heck反应闭合哌啶环,以及在高级合成阶段精制二氢吲哚核。TBDMS =叔丁基二甲基甲硅烷基。