Carbonic anhydrase inhibitors – Part 78. Synthesis of water-soluble sulfonamides incorporating β-alanyl moieties, possessing long lasting-intraocular pressure lowering properties via the topical route
作者:C Supuran
DOI:10.1016/s0223-5234(00)00130-6
日期:2000.3
new derivatives were assayed as inhibitors of the zinc enzyme carbonic anhydrase (CA), and more precisely of three of its isozymes, CA I, II (cytosolic forms) and IV (membrane-bound form), involved in important physiological processes. Good inhibition was observed against all three isozymes, but especially against CA II and CA IV (in the nanomolar range), the two isozymes known to play a critical role
在除去碳原子后,在提供的碳二亚胺衍生物存在下,使26种含氨基,亚氨基,肼基或羟基的芳香族/杂环磺酰胺与N-叔丁氧羰基-β-丙氨酸(Boc-β-ala; Boc =叔丁氧羰基)反应保护基团是一系列水溶性化合物(作为强酸的盐,例如盐酸,三氟乙酸或三氟甲烷磺酸)。分析了新衍生物作为锌酶碳酸酐酶(CA)的抑制剂,更确切地说,是涉及重要生理过程的三种同工酶CA I,II(胞质形式)和IV(膜结合形式)的抑制剂。对所有三种同工酶均表现出良好的抑制作用,尤其是对CA II和CA IV(纳摩尔范围),已知这两种同工酶在眼睫状突中在房水分泌中起关键作用。当观察到许多强抑制剂和持久性降低眼内压(IOP)时,一些合成的最佳抑制剂以2%水溶液的形式应用于正常血压或青光眼性白化病兔子的眼睛。因此,赋予这些磺酰胺CA抑制剂水溶性的氨基酰基基团,加上其强大的酶抑制性能和平衡的脂质溶解度,似乎是获得具有有效局部抗青光眼活