作者:Janine Cossy、Isabelle Pévet、Christophe Meyer
DOI:10.1002/1099-0690(200108)2001:15<2841::aid-ejoc2841>3.0.co;2-w
日期:2001.8
(-)-4a,5-Dihydrostreptazolin has been synthesized in nine steps from D-glyceraldehyde acetonide. Key steps include a diastereoselective addition of a vinylic Grignard reagent to an imine derived from D-glyceraldehyde acetonide, a ring-closing metathesis, and a stereoselective radical-mediated enyne cyclization.
(-)-4a,5-二氢链霉菌素是以D-甘油醛乙酸酐为起始材料,在九步反应中成功合成的。关键步骤包括:
1. 将由D-甘油醛乙酸酐衍生而来的亚胺与烯丙基格氏试剂进行非对映选择性加成;
2. 进行了环闭合反应;
3. 完成了一种立体选择性自由基介导的烯炔环化反应。