Total synthesis of (−)-centrolobine: β-C-glycoside formation via a tandem Grignard addition and stereoselective hemi-ketal reduction
作者:Michael P. Jennings、Ryan T. Clemens
DOI:10.1016/j.tetlet.2005.01.156
日期:2005.3
It has been demonstrated that an aryl-β-C-glycoside can be efficiently constructed via a sequence consisting of Brown asymmetric allylation, ring-closing metathesis, hydrogenation, nucleophilic addition, and stereoselective Et3SiH reduction. The antibiotic natural product (−)-centrolobine was synthesized in this manner utilizing only five steps with an overall 53% yield.
已经证明,可以通过由布朗不对称烯丙基化,闭环易位,氢化,亲核加成和立体选择性Et 3 SiH还原组成的序列有效地构建芳基-β - C-糖苷。以这种方式仅使用五个步骤就合成了抗生素天然产物(-)-中心洛宾,总产率为53%。