Asymmetric synthesis of 3,5-bis(isopropyloxy)-4-methoxyphenyl glycine by way of a diastereoselective Strecker reaction and an Evans electrophilic amination reaction
作者:Caroline Vergne、Jean-Philippe Bouillon、Jacqueline Chastanet、Michèle Bois-Choussy、Jieping Zhu
DOI:10.1016/s0957-4166(98)00312-7
日期:1998.9
Two short syntheses of D-N-Boc-3,5-bis(isopropyloxy)-4-methoxyphenyl glycine, a central unit of vancomycin type antibiotics, have been developed. A diastereoselective Strecker reaction using (S)-phenylglycinol as a chiral inducer was the key step in the first synthesis, while Evans' electrophilic amination technology was employed for introducing both the amino function and the chirality in the second strategy. (C) 1998 Elsevier Science Ltd. All rights reserved.