Unusual lability of α-silyloxy β-amino carboxylic acid derivatives
作者:Michael N. Greco、H.Marlon Zhong、Bruce E. Maryanoff
DOI:10.1016/s0040-4039(98)00967-8
日期:1998.7
Saponification and mild acidification of alpha-silyloxy homo-arginine derivative 2c revealed an unusual lability of the silyl protecting group. A systematic study of related substrates indicates that hydrogen bonding between the alpha-amino hydrogen and the carbonyl oxygen is critical for facile desilylation. A mechanism involving neighboring group participation of NH and carboxyl groups is proposed. (C) 1998 Elsevier Science Ltd. All rights reserved.
Balenovic et al., Croatica Chemica Acta, 1956, vol. 28, p. 279,281
作者:Balenovic et al.
DOI:——
日期:——
Peptidase inhibitors
申请人:Merrell Pharmaceuticals Inc.
公开号:US05496927A1
公开(公告)日:1996-03-05
This invention relates to analogs of peptidase substrates in which the amide group containing the scissile amide bond of the substrate peptide has been replaced by an activated electrophilic ketone moiety. These analogs of the peptidase substrates provide specific enzyme inhibitors for a variety of proteases, the inhibition of which will have useful physiological consequences in a variety of disease states.