Total Synthesis of the Nonadjacent Bis-Tetrahydrofuran Annonaceous Acetogenin Squamostatin-D
作者:James A. Marshall、Hongjian Jiang
DOI:10.1021/jo981103r
日期:1998.10.1
acetogenin squamostatin-D is described. Key adjacent stereocenters were introduced through enantioselective addition of chiral oxygenated allylic tin and indium reagents to aldehyde subunits. The isolated stereocenter at C12 was constructed through addition of a functionalized organozinc reagent to an aldehyde subunit in the presence of a chiral bis-sulfonamide-titanium catalyst.
描述了Annanoaceous acetogenin squamostatin-D的全合成。通过将手性含氧烯丙基锡和铟试剂对映选择性加入醛亚基中,引入关键的相邻立体中心。通过在手性双磺酰胺钛催化剂的存在下向醛亚基中添加官能化的有机锌试剂来构建C12处分离的立体中心。