Protease inhibitors. Part 8: synthesis of potent Clostridium histolyticum collagenase inhibitors incorporating sulfonylated l -alanine hydroxamate moieties
作者:Andrea Scozzafava、Claudiu T. Supuran
DOI:10.1016/s0968-0896(99)00316-8
日期:2000.3
of hydroxamates was prepared by reaction of alkyl/arylsulfonyl halides with N-2-chlorobenzyl-L-alanine, followed by conversion of the COOH moiety to the CONHOH group, with hydroxylamine in the presence of carbodiimides. Other structurally related compounds were obtained by reaction of N-2-chlorobenzyl-L-alanine with aryl isocyanates, arylsulfonyl isocyanates or benzoyl isothiocyanate, followed by the
通过使烷基/芳基磺酰基卤化物与N-2-氯苄基-L-丙氨酸反应,然后在碳二亚胺存在下,用羟胺将COOH部分转化为CONHOH基团,来制备一系列异羟肟酸酯。通过N-2-氯苄基-L-丙氨酸与芳基异氰酸酯,芳基磺酰基异氰酸酯或苯甲酰基异硫氰酸酯反应,然后将COOH类似地转化为CONHOH部分,可获得其他结构相关的化合物。分析了这些新化合物作为溶组织梭状芽胞杆菌胶原酶ChC(EC 3.4.24.3)的抑制剂,该酶是一种细菌锌金属肽酶,可降解三重螺旋胶原以及大量合成肽。所制备的异羟肟酸酯衍生物被证明是活性胶原酶抑制剂的活性是相应羧酸盐的100-500倍。导致最佳ChC抑制剂的取代模式(对于羧酸盐和对异羟肟酸酯而言)是涉及全氟烷基磺酰基和取代芳基磺酰基部分的那些,例如五氟苯基磺酰基;3-和4-保护的氨基苯基磺酰基-; 3-和4-羧苯基磺酰基-; 3-三氟甲基-苯基磺酰基;以及1-和2-萘基,喹啉-8-基