Alkoxycarbonylation and selective deprotection of N-silyl derivatives of L-arginine
摘要:
N-delta,N-omega,O-Tris(trialkylsilyl)-N-alpha-carbobenzyloxy-L-arginine can be prepared in situ tom N-alpha-carbobenzyloxy-L-arginine. Treatment with alkyl chloroformates gives N-delta,N-omega-bis(alkyloxycarbonyl)-N-alpha-carbobenzyloxy-L-arginines, which can be converted into N-delta,N-omega-bis(alkyloxycarbonyl)-L-arginines by hydrogenation. (C) 1998 Elsevier Science Ltd. All rights reserved.
Reliable procedures for the selective introduction of carbobenzyloxy and phthalimido groups onto the alpha-amino position, and of carboethoxy groups onto the delta- and omega-guanidino positions of L-arginine are described.
Alkoxycarbonylation and selective deprotection of N-silyl derivatives of L-arginine
作者:Humphrey A. Moynihan、Weiping Yu
DOI:10.1016/s0040-4039(98)00488-2
日期:1998.5
N-delta,N-omega,O-Tris(trialkylsilyl)-N-alpha-carbobenzyloxy-L-arginine can be prepared in situ tom N-alpha-carbobenzyloxy-L-arginine. Treatment with alkyl chloroformates gives N-delta,N-omega-bis(alkyloxycarbonyl)-N-alpha-carbobenzyloxy-L-arginines, which can be converted into N-delta,N-omega-bis(alkyloxycarbonyl)-L-arginines by hydrogenation. (C) 1998 Elsevier Science Ltd. All rights reserved.
Improved Selective Protections of L-Arginine
作者:Humphrey A. Moynihan、Weiping Yu
DOI:10.1080/00397919808005069
日期:1998.1
Reliable procedures for the selective introduction of carbobenzyloxy and phthalimido groups onto the alpha-amino position, and of carboethoxy groups onto the delta- and omega-guanidino positions of L-arginine are described.