Chiral bicyclic lactams. An asymmetric synthesis of cis-(1s, 3r) deltamethrinic acid
作者:A.I. Meyers、Daniel Romo
DOI:10.1016/s0040-4039(00)99569-8
日期:——
Cyclopropanation of a chiral α,β-unsaturated bicyclic lactam derived from tert-leucinol and levulinic acid gave after 4 steps, the title compound in > 99% ee.