Enantioselective synthesis of novel homochiral α-substituted (S)-isoserine derivatives. Incorporation of this amino acid in a highly conformationally constrained dipeptide surrogate
作者:Miguel Díaz、Rosa M Ortuño
DOI:10.1016/s0957-4166(96)00454-5
日期:1996.12
Optically pure isoserine derivatives with a chiral polyfunctional bicyclo[3.1.0]hexyl substituent at the α-carboxyl position were synthesized from a common cyclopentene precursor bearing an α-epoxy ester function in a side-chain. Cyclopropanation of the double bond and nucleophilic oxirane-ring opening by using a homochiral amine were the key steps. One of the synthesized derivatives was condensed