Method of improving the effectiveness of a cytotoxic drug or radiotherapy using a quinazolinone compound
申请人:Newcastle University Ventures Limited
公开号:US06316455B1
公开(公告)日:2001-11-13
A range of 3-oxybenzamide compounds and related quinazolinone compounds are disclosed which can act as potent inhibitors of the DNA repair enzyme poly(ADP-ribose) polymerase or PARP enzyme (EC 2.4.2.30), and which thereby can provide useful therapeutic compounds for use in conjunction with DNA-damaging cytotoxic drugs or radiotherapy to potentiate the effects of the latter. The coumpounds disclosed include 3-benzyloxybenzamides, 3-oxybenzamides in which a chain of 5 or more methylene groups terminate in a halogen atom or in a purin-9-yl moiety, certain benzoxazole-4-carboxamide compounds and certain quinazolinone compounds. In formula X and Y together may form a bride —X—Y— that represents the grouping (a), (b) or (c) wherein R5 is H, alkyl, aryl or aralkyl.
本文披露了一系列3-氧基苯甲酰胺化合物和相关的喹唑啉酮化合物,可作为DNA修复酶聚(ADP-核糖)聚合酶或PARP酶(EC 2.4.2.30)的强效抑制剂,并因此可提供有用的治疗化合物,用于与DNA损伤细胞毒性药物或放疗结合使用,以增强后者的效果。披露的化合物包括3-苄氧基苯甲酰胺、3-氧基苯甲酰胺,其中5个或更多亚甲基基团的链以卤素原子或嘌呤-9-基团为终止基团,某些苯并噁唑-4-羧酰胺化合物和某些喹唑啉酮化合物。在公式X和Y中,它们可以组成一个桥-X-Y-,表示基团(a)、(b)或(c),其中R5为H,烷基,芳基或芳烷基。