Mechanism-Based Isocoumarin Inhibitors for Human Leukocyte Elastase. Effect of the 7-Amino Substituent and 3-Alkoxy Group in 3-Alkoxy-7-amino-4-chloroisocoumarins on Inhibitory Potency
作者:John E. Kerrigan、Jozef Oleksyszyn、Chih-Min Kam、Joe Selzler、James C. Powers
DOI:10.1021/jm00003a017
日期:1995.2
prepared and evaluated as inhibitors of human leukocyte elastase (HLE). In addition, a new series of acyl, urea, and carbamate derivatives of 7-amino-4-chloro-3-methoxyisocoumarin (1), 7-amino-4-chloro-3-propoxyisocoumarin (3), and 7-amino-4-chloro-3-(2-bromoethoxy)isocoumarin (6) have been synthesized. Most of the synthesized compounds are very potent inhibitors of HLE with kobs/[I] values between 10(4)
已经制备了具有各种3-烷氧基取代基的一系列3-烷氧基-7-氨基-4-氯异香豆素,并将其评估为人白细胞弹性蛋白酶(HLE)的抑制剂。此外,还推出了一系列新的7-氨基-4-氯-3-甲氧基异香豆素(1),7-氨基-4-氯-3-丙氧基异香豆素(3)和7-氨基-香豆素的酰基,脲和氨基甲酸酯衍生物已经合成了4-氯-3-(2-溴乙氧基)异香豆素(6)。大多数合成的化合物都是非常有效的HLE抑制剂,其kobs / [I]值在10(4)和10(6)M-1 s-1之间。异香豆素环7-氨基位置的疏水取代基为HLE提供了最佳的选择性和抑制能力。在2-溴乙氧基系列中,具有PhNHCONH 7取代基的化合物24的kobs / [I]值为1.2 x 10(6)M-1 s-1,对HLE具有很高的选择性,并且是最有效的HLE抑制剂。经过HLE测试。在长链L-苯丙氨酰基衍生物中,kobs / [I]值为1.8 x 10(5)M-1
Mechanism-Based Isocoumarin Inhibitors for Blood Coagulation Serine Proteases. Effect of the 7-Substituent in 7-Amino-4-chloro-3-(isothioureidoalkoxy)isocoumarins on Inhibitory and Anticoagulant Potency
作者:Chih-Min Kam、John E. Kerrigan、R. Richard Plaskon、Edward J. Duffy、Pete Lollar、F. L. Suddath、James C. Powers
DOI:10.1021/jm00035a009
日期:1994.4
7-amino-4-chloro-3-(3-isothioureidopropoxy)isocoumarin (NH2-CiTPrOIC) derivatives with various substituents at the 7- and 3-positions have been synthesized as inhibitors of several bloodcoagulation enzymes. Isocoumarins substituted with basic groups such as guanidino or isothioureidoalkoxy groups were previously shown to be potent irreversible inhibitors of bloodcoagulation enzymes [Kam et al. Biochemistry
已经合成了在7位和3位带有各种取代基的一系列7-氨基-4-氯-3-(3-异硫脲基丙氧基)异香豆素(NH2-CiTPrOIC)衍生物,它们是几种凝血酶的抑制剂。先前已显示被诸如胍基或异硫脲基烷氧基等碱性基团取代的异香豆素是有效的不可逆的凝血酶抑制剂[Kam et al。生物化学1988,27,2547-2557]。与NH2-CiTPrOIC(4)相比,在3位具有异硫脲基乙氧基和在7位具有大疏水基团的取代的香豆素是更好的凝血酶,VIIa,Xa,XIa,IIa和IXa抑制剂。PhNHCONH-CiTEtOIC(14),(S)-Ph(CH3)CHNHCONH-CiTEtOIC(25),和(R)-Ph(CH3)CHNHCONH-CiTEtOIC(26)非常有效地抑制凝血酶,并且kobs / [I]值为(1-4)x 10(4)M-1 s-1。与人α-凝血酶非共价复合的几种异香豆素的结构模型表明,7位取代基与Lys-60F