申请人:Xenova Limited
公开号:US05700804A1
公开(公告)日:1997-12-23
Diketopiperazines of the formula: ##STR1## where each of R.sub.1 to R.sub.10, which may be the same or different, is independently selected from the group consisting of hydrogen, C.sub.1 -C.sub.6 alkyl unsubstituted or substituted by one or more halogen atoms, C.sub.1 -C.sub.6 alkoxy, C.sub.1 -C.sub.6 alkylthio, halogen, hydroxy, nitro, phenyl, -cyano, --CH.sub.2 OH, --CH.sub.2 COOH, --CO.sub.2 R.sup.11, --NHCOR.sup.11, --NHSO.sub.2 R.sup.13, --SO.sub.2 R.sup.13, --CON(R.sup.11 R.sup.12), --SOR.sup.13, --SO.sub.2 N(R.sup.11 R.sup.12), --N(R.sup.11 R.sup.12), and --O(CH.sub.2).sub.n N(R.sup.11 R.sup.12), --O(CH.sub.2).sub.n CO.sub.2 R.sup.11, --OCOR.sup.11, --CH.sub.2 OCOR.sup.11, --CH.sub.2 NHCOR.sup.11, --CH.sub.2 NHCOOR.sup.13, --CH.sub.2 SR.sup.11, --CH.sub.2 SCOR.sup.11, --CH.sub.2 S(O).sub.m R.sup.13 wherein m is 1 or 2, --CH.sub.2 NHCO(CH.sub.2).sub.n CO.sub.2 R.sup.11, --N(R.sup.11)COR.sup.12, --NHCOCF.sub.3, --NHCO(CH.sub.2).sub.n CO.sub.2 R.sup.11, --NHCO(CH.sub.2).sub.n OCOR.sup.11 and --NHCO(CH.sub.2).sub.n OR.sup.11 wherein n is 0 or is an integer of from 1 to 6, each of R.sup.11 and R.sup.12 is independently H or C.sub.1 -C.sub.6 alkyl and R.sup.13 is C.sub.1 -C.sub.6 alkyl; or any of R.sub.1 and R.sub.2, R.sub.2 and R.sub.3, R.sub.3 and R.sub.4 and R.sub.4 and R.sub.5, or R.sub.6 and R.sub.7, R.sub.7 and R.sub.8, R.sub.8 and R.sub.9 and R.sub.9 and R.sub.10, form together with the carbon atoms to which they are attached a benzene ring; and pharmaceutically acceptable salts and esters thereof are inhibitors of the plasminogen activator inhibitor.
式为:##STR1##的二酮肽,其中R.sub.1至R.sub.10中的每个基团(可以相同或不同)独立地从以下基团中选择:氢,C.sub.1-C.sub.6烷基,该烷基未取代或取代了一个或多个卤素原子,C.sub.1-C.sub.6烷氧基,C.sub.1-C.sub.6烷基硫基,卤素,羟基,硝基,苯基,-氰基,--CH.sub.2 OH,--CH.sub.2 COOH,--CO.sub.2 R.sup.11,--NHCOR.sup.11,--NHSO.sub.2 R.sup.13,--SO.sub.2 R.sup.13,--CON(R.sup.11 R.sup.12),--SOR.sup.13,--SO.sub.2 N(R.sup.11 R.sup.12),--N(R.sup.11 R.sup.12),以及--O(CH.sub.2).sub.n N(R.sup.11 R.sup.12),--O(CH.sub.2).sub.n CO.sub.2 R.sup.11,--OCOR.sup.11,--CH.sub.2 OCOR.sup.11,--CH.sub.2 NHCOR.sup.11,--CH.sub.2 NHCOOR.sup.13,--CH.sub.2 SR.sup.11,--CH.sub.2 SCOR.sup.11,--CH.sub.2 S(O).sub.m R.sup.13,其中m为1或2,--CH.sub.2 NHCO(CH.sub.2).sub.n CO.sub.2 R.sup.11,--N(R.sup.11)COR.sup.12,--NHCOCF.sub.3,--NHCO(CH.sub.2).sub.n CO.sub.2 R.sup.11,--NHCO(CH.sub.2).sub.n OCOR.sup.11和--NHCO(CH.sub.2).sub.n OR.sup.11,其中n为0或为1至6的整数,R.sup.11和R.sup.12中的每个基团独立地为H或C.sub.1-C.sub.6烷基,R.sup.13为C.sub.1-C.sub.6烷基;或R.sub.1和R.sub.2,R.sub.2和R.sub.3,R.sub.3和R.sub.4以及R.sub.4和R.sub.5,或R.sub.6和R.sub.7,R.sub.7和R.sub.8,R.sub.8和R.sub.9以及R.sub.9和R.sub.10中的任意一对形成苯环,其药物学上可接受的盐和酯是纤溶酶原激活抑制剂。