Studies of HIV-1 Protease Inhibitors. I. Incorporation of a Reduced Peptide, Simple Aminoalcohol, and Statine Analog at the Scissile Site of Substrate Sequences.
作者:Mitsuya SAKURAI、Machiko SUGANO、Hiroshi HANDA、Tomoaki KOMAI、Ryuichi YAGI、Takashi NISHIGAKI、Yuichiro YABE
DOI:10.1248/cpb.41.1369
日期:——
Inhibitors of the protease of human immunodeficiency virus type-1 (HIV-1) were designed and synthesized. A reduced peptide, simple aminoalcohol, and statine analog, 4-amino-3-hydroxy-5-phenylpentanoic acid (AHPPA), were inserted at the scissile site of substrate sequences of HIV-1 protease. While both reduced peptides and simple aminoalcohol derivatives were weak inhibitors, the peptides containing AHPPA demonstrated moderate inhibitory activity. The more potent alcohol configuration of AHPPA is (R), which is opposite to the configuration in potent inhibitors of other aspartic proteases. In particular, compound 28 ((3R, 4S)-4-(N-tert-butoxycarbonyl-L-glutaminyl-L-asparaginyl)amino-3-hydroxy-5-phenylpentanoic acid 2'-methylbutylamide) had a Ki of 0.36μM and exhibited excellent enzyme specificity.
人类免疫缺陷病毒类型1(HIV-1)蛋白酶抑制剂的设计和合成。通过在HIV-1蛋白酶底物序列的切割位点插入一种还原肽、简单氨基醇和类斯塔丁的类似物,4-氨基-3-羟基-5-苯基戊二酸(AHPPA)。虽然还原肽和简单氨基醇衍生物的抑制活性较弱,但含有AHPPA的肽表现出中等的抑制活性。AHPPA的更有效的醇构型为(R),与其他天冬氨酸蛋白酶的有效抑制剂的构型相反。特别是化合物28((3R, 4S)-4-(N-叔丁氧羰基-L-谷氨酰基-L-天冬氨酸)氨基-3-羟基-5-苯基戊二酸2'-甲基丁胺)具有0.36μM的Ki值,并表现出优异的酶专一性。