申请人:NIPPON KAYAKU KABUSHIKI KAISHA
公开号:EP0468339A2
公开(公告)日:1992-01-29
57 The present invention discloses a new a-keto amide derivative or a salt thereof represented by the formula (1 ):
wherein X represents (1) a peptide residue or amino acid residue in which the functional group may be protected, (2) a hydrogen atom or (3) an amino-protective group, Y represents a peptide residue or amino acid residue in which the functional group may be protected, E represents a substituent on the alkylene (CnH2n-1) and is a halogen, lower alkoxy or hydrogen, A represents a carbonyl group or mono- or di-substituted methylene (the substituent being a hydroxy, lower alkoxy, phenylimino or benzylimino), and n represents an integer of 2 to 6.
The compound of the present invention is effective in inhibiting prolyl endopeptidase activity and useful as an active ingredient of an enzyme inhibitor.
57 本发明公开了一种新的 a-酮酰胺衍生物或其盐,由式(1 )表示:
其中 X 代表(1)其中官能团可被保护的肽残基或氨基酸残基,(2)氢原子或 (3)氨基保护基团,Y 代表其中官能团可被保护的肽残基或氨基酸残基、E 代表亚烷基(CnH2n-1)上的取代基,为卤素、低级烷氧基或氢,A 代表羰基或单取代或二取代亚甲基(取代基为羟基、低级烷氧基、苯基亚氨基或苄基亚氨基),n 代表 2 至 6 的整数。
本发明的化合物能有效抑制脯氨酰内肽酶的活性,可用作酶抑制剂的活性成分。