Poststatin, a New Inhibitor of Prolyl Endopeptidase. VI. Endopeptidase Inhibitory Activity of Poststatin Analogues Containing Pyrrolidine Ring.
作者:MAKOTO TSUDA、YASUHIKO MURAOKA、TETSUYA SOMENO、MACHIKO NAGAI、TAKAAKI AoYAGI、TOMIO TAKEUCHI
DOI:10.7164/antibiotics.49.900
日期:——
Several pyrrolidine-containing analogues of poststatin were synthesized and examined for their inhibitory activity against prolyl endopeptidase and cathepsin B in vitro. Replacement of the postine residue with 2-oxo-2-(2-pyrrolidinyl)acetic acid increased the selectivity and inhibitory activity against prolyl endopeptidase. Benzyloxycarbonyl-L-phenylalanyl-(S)-2-oxo-2-(2-pyrrolidinyl)acetyl-D-phenylalanine was about 46 times as active to prolyl endopeptidase as natural poststatin.
合成了几种含有吡咯烷结构片段的波斯他丁类似物,并研究了它们对脯氨酰内肽酶和组织蛋白酶B的体外抑制活性。将波斯他丁中的波斯汀残基替换为2-氧代-2-(2-吡咯烷基)乙酸,增加了其对脯氨酰内肽酶的选择性和抑制活性。苄氧羰基-L-苯丙氨酰-(S)-2-氧代-2-(2-吡咯烷基)乙酰基-D-苯丙氨酸对脯氨酰内肽酶的活性约为天然波斯他丁的46倍。