作者:Andrea Scozzafava、Claudiu T. Supuran
DOI:10.1016/s0928-0987(99)00086-x
日期:2000.3
strategy similar to that applied for the amino acyl compounds mentioned above. The new derivatives proved to be efficient activators of three CA isozymes. Best activity was detected against hCA I and bCA IV, for which some of the new compounds showed affinities in the 1-10 nM range (h, human; b, bovine isozymes). hCA II, on the other hand, was less prone to activation by the new derivatives, which possessed
通过使组胺(Hst)与四溴邻苯二甲酸酐反应,然后用三苯甲基磺酰氯保护其咪唑部分,来合成N-1-三苯甲基磺酰组胺。肼解后,它提供了一种关键中间体,该中间体在氨乙基上衍生化,以便获得新型的锌酶碳酸酐酶活化剂(CA,EC 4.2.1.1)。在咪唑氮原子脱保护后,在碳二亚胺存在下,关键中间体与4-氯苯基磺酰脲基氨基酸(cpu-AA)反应,得到了一系列通式为cpu-AA-Hst(cpu,4-ClC)的化合物(6)H(4)SO(2)NHCO)。一些结构上相关的通式为cpu-AA1-AA2-Hst(AA,(AA1和AA2代表氨基酰基部分)也通过类似于上述用于氨基酰基化合物的策略制备。新的衍生物被证明是三种CA同工酶的有效激活剂。检测到针对hCA I和bCA IV的最佳活性,其中一些新化合物显示出1-10 nM的亲和力(h,人; b,牛同工酶)。另一方面,hCA II不易被新的衍生物激活,该新衍生物对该同工酶的亲和力约为20-50