Esters and Amides of 6-(Chloromethyl)-2-oxo-2<i>H</i>-1-benzopyran-3-carboxylic Acid as Inhibitors of α-Chymotrypsin: Significance of the “Aromatic” Nature of the Novel Ester-Type Coumarin for Strong Inhibitory Activity
作者:Lionel Pochet、Caroline Doucet、Marc Schynts、Nicole Thierry、Nicole Boggetto、Bernard Pirotte、Kai Y. Jiang、Bernard Masereel、Pascal de Tullio、Jacques Delarge、Michèle Reboud-Ravaux
DOI:10.1021/jm960090b
日期:1996.1.1
activity toward bovine alpha-chymotrypsin and human leukocyte elastase. Both series behaved as time-dependent inhibitors of alpha-chymotrypsin, but ester-type coumarins were clearly more efficient than the corresponding amides in inactivating the serine proteinase. The best inactivations were observed with "aromatic" esters, in particular with meta-substituted phenyl esters such as m-chlorophenyl 6-(chlor
合成了一系列6-(氯甲基)-2-氧代-2H-1-苯并吡喃-3-羧酸的酯和酰胺,并在体外评估了它们对牛α-胰凝乳蛋白酶和人白细胞弹性蛋白酶的抑制活性。这两个系列均表现为α-胰凝乳蛋白酶的时间依赖性抑制剂,但酯型香豆素在灭活丝氨酸蛋白酶方面显然比相应的酰胺更有效。用“芳族”酯,尤其是间位取代的苯基酯,例如间氯苯基6-(氯甲基)-2-氧代-2H-1-苯并吡喃-3-羧酸酯,观察到最好的灭活。最强大的α-胰凝乳蛋白酶灭活剂(在pH 7.5和25摄氏度下,激酶/ KI = 760,000 M-1 S-1)的报道。通常,香豆素衍生物不能显着抑制人白细胞弹性蛋白酶。