Total synthesis of optically active integerrimine, a twelve-membered dilactonic pyrrolizidine alkaloid of retronecine type
作者:Haruki Niwa、Yasuyoshi Miyachi、Osamu Okamoto、Youichi Uosaki、Akio Kuroda、Hiroyuki Ishiwata、Kiyoyuki Yamada
DOI:10.1016/s0040-4020(01)89003-7
日期:——
A total synthesis of the natural enantiomer of integerrimine (1), a twelve-membered dilactonic pyrrolizidine alkaloid of retronecine type has been achieved through the enantioselective synthesis and regioselective coupling of (+)-retronecine (4) and (+)-integerrinecic acid (methylthio)methyl ether (6).
千里光的自然对映体(的总合成1 retronecine( - ),retronecine类型的12元dilactonic吡咯烷类生物碱已经通过对映选择性合成和(+)的区域选择性耦合实现4)和(+) - integerrinecic酸(甲硫基)甲醚(6)。