申请人:Cancer Research Campaign Technology Limited
公开号:US05281620A1
公开(公告)日:1994-01-25
The novel class of xanthenone-4-acetic acids represented by the general formula (I) ##STR1## where R.sub.1 represents up to two of the groups lower alkyl, halogen, CF.sub.3, CN, NO.sub.2, NH.sub.2, CH.sub.2 COOH, OR.sub.2, OH, NHCOR.sub.2, NHSO.sub.2 R.sub.2, SR.sub.2, SO.sub.2 R.sub.2, CH.sub.2 CONHR.sub.2 or NHR.sub.2 (where R.sub.2 is lower alkyl optionally substituted with hydroxy, amino or methoxy functions), at any of the positions 1-8 which are available, R.sub.1 may also represent the substitution of an aza (--N.dbd.) group for one or two of the methine (--CH.dbd.) groups in the carbocyclic rings and two of R.sub.1 on any two available adjacent positions may also represent the grouping --CH.dbd.CH--CH.dbd.CH-- to form an additional fused benzene ring; and basic addition salts thereof, possess antitumour and antibacterial properties.
通式(I)所代表的新型黄色酮-4-乙酸类化合物,其中R.sub.1代表以下任意两种或两种以下的基团:低级烷基、卤素、CF.sub.3、CN、NO.sub.2、NH.sub.2、CH.sub.2 COOH、OR.sub.2、OH、NHCOR.sub.2、NHSO.sub.2 R.sub.2、SR.sub.2、SO.sub.2 R.sub.2、CH.sub.2 CONHR.sub.2或NHR.sub.2(其中R.sub.2是低级烷基,可选地被羟基、氨基或甲氧基取代),可以出现在可用的1-8位置中的任何一个。R.sub.1也可以代表在碳环中一个或两个甲基(--CH.dbd.)基团被一个氮(--N.dbd.)基团所取代,且在任意两个相邻可用位置上的两个R.sub.1也可以代表--CH.dbd.CH--CH.dbd.CH--基团,形成一个额外的融合苯环;以及它们的碱性加合盐具有抗肿瘤和抗菌特性。