申请人:Banyu Pharmaceutical Co., Ltd.
公开号:US05380921A1
公开(公告)日:1995-01-10
There are provided novel aminophosphonic acid derivatives of the general formula [I]: ##STR1## wherein n is an integer of 2 or 3; R.sup.1 is a phenyl, naphthyl, indolyl, benzothienyl, benzofuryl or benzoxazolyl group which may have 1 to 3 substituents selected from the group consisting of hydroxyl and lower alkyloxy groups, or a hydrogen atom; R.sup.2 is a lower alkyl group, a benzyl group, a 4-hydroxybenzyl group, a 3-indolylmethyl group or a .beta.-phenethyl group; and A is an optional residue of an amino acid selected from the group consisting of tryptophane, tyrosine, phenylalanine, homophenylalanine, naphthylalanine or N.sup..omega. -nitroarginine, and their pharmaceutically acceptable salts. The compounds according to the present invention and their pharmaceutically acceptable salts exhibit an inhibitory activity against endothelin-converting enzyme, and are expected to be useful as a drug treating various diseases with which endothelin is concerned.
提供了一种一般式[I]的新型氨基膦酸衍生物:其中n是2或3的整数;R.sup.1是苯基、萘基、吲哚基、苯并噻吩基、苯并呋喃基或苯并噁唑基,可能具有1至3个亚羟基和较低的烷氧基从羟基和较低的烷氧基中选择的取代基,或氢原子;R.sup.2是较低的烷基、苄基、4-羟基苄基、3-吲哚甲基基团或β-苯乙基基团;A是从色氨酸、酪氨酸、苯丙氨酸、同苯丙氨酸、萘丙氨酸或N.ω.-硝基精氨酸中选择的氨基酸的可选残基和它们的药用盐。根据本发明的化合物及其药用盐对内皮素转化酶表现出抑制活性,并有望作为治疗涉及内皮素的各种疾病的药物。