申请人:SmithKline Beecham P.L.C.
公开号:US06156774A1
公开(公告)日:2000-12-05
Mercapto amino acid derivatives of formula (I), wherein R is hydrogen, a salt-forming cation of a in vivo hydrolysable ester-forming group; R.sub.1 is selected from (a) and (b) in which A is a monocyclic aryl or heteroaryl ring and B is a monocyclic aryl, alicyclic or heterocyclic ring, C and D are independently --Z.sub.p --(CR.sub.8 CR.sub.9).sub.q -- or --(CR.sub.8 CR.sub.9).sub.q --Z.sub.p -- where p is 0 or 1, q is 0 to 3 provided that p+q in C is not 0, R.sub.8 and R.sub.9 are independently hydrogen or (C.sub.1-6)alkyl or together represent oxo and Z is O, NR.sub.10 or S(O).sub.x where R.sub.10 is hydrogen, (C.sub.1-6)alkyl or aryl(C.sub.1-6)alkyl and x is 0-2, and wherein C and D are linked ortho to one another on each of the rings A and B in formula (b); R.sub.2 is hydrogen, (C.sub.1-6)alkyl or aryl(C.sub.1-6)alkyl; R.sub.3 is hydrogen, (C.sub.1-6)alkyl optionally substituted by up to three halogen atoms, (C.sub.3-7)cycloalkyl, fused aryl(C.sub.3-7)cycloalkyl, (C.sub.3-7)cycloalkyl(C.sub.2-6)alkyl, (C.sub.2-6)alkenyl, (C.sub.2-6)alkynyl, aryl, aryl--(CH.sub.2).sub.m --X--(CH.sub.2).sub.n, heterocyclyl or heterocyclyl--(CH.sub.2).sub.m --X--(CH.sub.2).sub.n, where m is 0 to 3, n is 1 to 3 and X is O or S(O).sub.x where x is 0-2 or a bond; R.sub.4 is hydrogen or an in vivo hydrolysable acyl group; and R.sub.5 and R.sub.6 are independently hydrogen and (C.sub.1-6)alkyl or together represent (CH.sub.2).sub.r, where r is 2 to 5; for use in treatment of bacterial infections in humans or animals by administration in combination with a .beta.-lactam antiobiotic.
公式(I)中的巯基氨基酸衍生物,其中R为氢,是体内可水解酯形成基团的盐形成阳离子;R.sub.1是从(a)和(b)中选择的,其中A是单环芳基或杂环芳基环,B是单环芳基、脂环或杂环环,C和D分别为--Z.sub.p --(CR.sub.8 CR.sub.9).sub.q --或--(CR.sub.8 CR.sub.9).sub.q --Z.sub.p --,其中p为0或1,q为0到3,前提是C中的p+q不为0,R.sub.8和R.sub.9独立地为氢或(C.sub.1-6)烷基,或一起代表氧代和Z为O、NR.sub.10或S(O).sub.x,其中R.sub.10为氢、(C.sub.1-6)烷基或芳基(C.sub.1-6)烷基,x为0-2,且C和D在公式(b)中的环A和B上相互连接;R.sub.2为氢、(C.sub.1-6)烷基或芳基(C.sub.1-6)烷基;R.sub.3为氢、(C.sub.1-6)烷基,可选地被高达三个卤原子取代,(C.sub.3-7)环烷基,融合的芳基(C.sub.3-7)环烷基,(C.sub.3-7)环烷基(C.sub.2-6)烷基,(C.sub.2-6)烯烃基,(C.sub.2-6)炔烃基,芳基,芳基--(CH.sub.2).sub.m --X--(CH.sub.2).sub.n,杂环基或杂环基--(CH.sub.2).sub.m --X--(CH.sub.2).sub.n,其中m为0到3,n为1到3,X为O或S(O).sub.x,其中x为0-2或一个键;R.sub.4为氢或体内可水解的酰基;R.sub.5和R.sub.6独立地为氢和(C.sub.1-6)烷基,或一起代表(CH.sub.2).sub.r,其中r为2到5;用于治疗人类或动物的细菌感染,通过与β-内酰胺抗生素联合给药。