Patent number: 6797720
Abstract: A 1,3,4-oxadiazoline derivative of formula (I)
wherein W is oxygen, sulfer; R is hydrogen, alkyl, CycA, etc.; AA1 is a single bond, amino acid residue, etc.; AA2 is a single bond, amino acid residue, etc.; R7 and R8 are hydrogen, alkyl, etc.; R9 is hydrogen, alkyl, etc., and a non-toxic salt thereof.
The compound of formula (I) has an inhibitory activity against cysteine protease and therefore it is useful as an agent for the prophylaxis and/or treatment of inflammatory diseases, diseases induced by apoptosis, diseases induced by disorders of immune responses, autoimmune diseases, diseases induced by decomposition of proteins which compose organism, shock, circulatory system disorders, blood coagulation systems disorders, malignant tumors, acquired immune deficiency syndrome (AIDS) and AIDS-related complex (ARC), parasitic diseases, nerve degeneration diseases, pulmonary disorders, bone resorption diseases, endocrinesthenia, etc.
Type:
Grant
Filed:
August 28, 2002
Date of Patent:
September 28, 2004
Assignee:
ONO Pharmaceutical Co., Ltd.
Inventors:
Kazuyuki Ohmoto, Iori Itagaki