A series of O-acyl derivatives of 6-hydroxybenzothiazole-2-sulfonamide (4, L-643,799) was prepared and the potential utility of each series member as a topically active inhibitor of ocular carbonic anhydrase was determined. In vitro studies showed these esters to be substrates for ocular esterases which liberate 4 during corneal translocation. The most interesting series member, 2-sulfamoyl-6-benzothiazolyl
制备了一系列
6-羟基苯并噻唑-2-磺酰胺的O-酰基衍
生物(4,L-643,799),并确定了每个系列成员作为眼用
碳酸酐酶局部活性
抑制剂的潜在用途。体外研究表明,这些酯是眼
酯酶的底物,它们在角膜移位过程中释放4。发现最有趣的系列成员2,2-磺
氨酰基-6-
苯并噻唑基2,2-二甲基
丙酸酯(22,L-645,151)以4的前药形式存在,当通过分离的白化兔子角膜递送时,其递送能力提高40倍与母体
酚4相比。在兔子中的研究表明22是一种有效的局部活性高眼压性
碳酸酐酶
抑制剂。