申请人:The University of Maryland
公开号:US05661183A1
公开(公告)日:1997-08-26
The present invention relates to novel derivatives of 3-hydroxyanthranilic acid, 3-HANA of general formula (I), wherein R.sup.1 and R.sup.2 are the same or different and selected from H and alkyl; X is selected from alkylthio, arylthio, aryloxy, halogen and cyano; R.sup.3, R.sup.4 are the same or different and selected from halogen, methyl, fluoroalkyl, cyano and Z-R.sup.5 wherein Z is selected from CH.sub.n, NH.sub.m, O, S, SO.sub.2 and CO wherein n=1 or 2; m=0 or 1 and R.sup.5 is selected from alkyl, aryl and fluoroalkyl; or R.sup.3 and R.sup.4 together form a saturated or unsaturated ring system Y-V-Z wherein Y and Z, independently of each other, are as defined for Z above and V is selected from C.sub.1 -C.sub.3 alkylene or alkenylene, --N.dbd., --N.dbd.N-- and (a), wherein R.sub.7 .dbd.H or alkyl; or a pharmaceutically acceptable salt thereof, methods and intermediates for their preparation, novel pharmaceutical compositions and the use thereof for inhibiting the enzyme 3-hydroxy-anthranilate oxygenase, 3-HAO, responsible for the production of the endogenous neurotoxin quinolinic acid, QUIN.
本发明涉及一种新颖的3-羟基蒽醌酸衍生物,通式(I)的3-HANA,其中R.sup.1和R.sup.2相同或不同,并且选择自H和烷基;X选择自烷硫基,芳硫基,芳氧基,卤素和氰基;R.sup.3,R.sup.4相同或不同,并选择自卤素,甲基,氟烷基,氰基和Z-R.sup.5,其中Z选择自CH.sub.n,NH.sub.m,O,S,SO.sub.2和CO,其中n=1或2;m=0或1,R.sup.5选择自烷基,芳基和氟烷基;或R.sup.3和R.sup.4一起形成饱和或不饱和环系Y-V-Z,其中Y和Z独立于彼此,并如上所定义,V选择自C.sub.1-C.sub.3 烷基或烯基,--N.dbd.,--N.dbd.N--和(a),其中R.sub.7.dbd.H或烷基;或其药学上可接受的盐,其制备方法和中间体,新颖的药物组合物及其用于抑制酶3-羟基蒽醌酸氧化酶,3-HAO,负责产生内源性神经毒素喹啉酸QUIN。