4H-3,1-benzoxazin-4-ones and related compounds, pharmaceutical compositions containing them, and processes for their preparation
申请人:SYNTEX (U.S.A.) INC.
公开号:EP0147211A2
公开(公告)日:1985-07-03
Novel 2-amino-4H-3,1-benzoxazin-4-ones represented by the formula
and the pharmaceutically acceptable esters and salts thereof wherein R' is hydrogen or lower alkyl;
R2 and R3 are each independently hydrogen, halo, lower alkyl, hydroxy, lower alkoxy, lower thioalkyl, -N02, -N(R')2, -NR'COR', -NHCON(R')2 or -NHCOOR',
with the proviso that at least one of R1, R2 and R3 is not hydrogen when X is NHR or NR'COR"; and
X is a radical chosen trom
in which:
R is lower alkyl, lower alkenyl, lower alkynyl, optionally substituted lower cycloalkyl or optionally substituted phenyl lower alkyl;
each R' is independently hydrogen or lower alkyl, or lower alkenyl or lower alkynyl where the unsaturated bond is at least one carbon removed from the O or N atom;
each R" is independently R, lower alkoxy, NHR' or AOR'; and
A is an amino acid residue, or a peptide of 2 to 3 amino acid residues, are useful as enzyme inhibitors in animals.
式所代表的新型 2-氨基-4H-3,1-苯并恶嗪-4-酮及其药物可接受的酯和盐 其中 R' 为氢或低级烷基
及其药学上可接受的酯和盐,其中 R' 为氢或低级烷基;
R2和R3各自独立地为氢、卤代、低级烷基、羟基、低级烷氧基、低级硫代烷基、-N02、-N(R')2、-NR'COR'、-NHCON(R')2或-NHCOOR'、
但当 X 为 NHR 或 NR'COR" 时,R1、R2 和 R3 中至少有一个不是氢;以及
X 是一个基团,选自
其中
R 是低级烷基、低级烯基、低级炔基、任选取代的低级环烷基或任选取代的苯基低级烷基;
每个 R'独立地为氢或低级烷基,或低级烯基或低级炔基,其中不饱和键与 O 原子或 N 原子至少相差一个碳;
每个 R "独立地为 R、低级烷氧基、NHR'或 AOR';以及
A 是氨基酸残基,或由 2 至 3 个氨基酸残基组成的肽,可用作动物体内的酶抑制剂。