发明名称 ENDOTHELIN ANTAGONISTIC SUBSTANCE
摘要 A peptide derivative of the formula: (I) wherein A is a group of the formula R11O-CO- (wherein R11 is a lower alkyl group or a phenyl group), or a group of the formula R12R13N-C(=O)- (wherein R12 is a lower alkyl group, a cycloalkyl group, a 1-adamantyl group, a phenyl group wherein one or two optional hydrogen atoms on the benzene ring may independently be replaced by a halogen atom, a trifluoromethyl group, a nitro group, an amino group or a formylamino group, a pyridyl group, or a thienyl group, R13 is a hydrogen atom, a lower alkyl group or a cycloalkyl group, or R12 and R13 form, together with the adjacent nitrogen atom, a 5- to 9membered nitrogen-containing saturated heterocyclic ring having 4 to 8 carbon atoms, wherein among methylene groups forming the ring, one optional methylene group not adjacent to the above nitrogen atom may be replaced by a thio group, and one to four optional hydrogen atoms on the carbon atoms of the heterocyclic ring may independently be replaced by a lower alkyl group, and further two adjacent carbon atoms in the heterocyclic ring may form a benzo-fused ring); B is an oxygen atom or a group of the formula -NR2- (wherein R2 is a hydrogen atom or a lower alkyl group); R3 is a lower alkyl group, a cycloalkyl group, an aryl group, a heterocyclic group, a cycloalkyl lower alkyl group, an aryl lower alkyl group or a heterocyclic lower alkyl group; X1 is an oxygen atom or a group of the formula -NR4- (wherein R4 is a hydrogen atom or a lower alkyl group); R5 is a 3-indolylmethyl, 3benzothienylmethyl, 1-naphthylmethyl or benzyl group wherein one or two optional hydrogen atoms on the ring may be replaced by a hydroxyl group, a halogen atom, a formyl group, a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a lower alkylsulfinyl group, a lower alkylsulfonyl group, a lower alkoxycarbonyl group, a nitro group or a group of the formula R51-CO-X2 {wherein R51 is a lower alkyl group, a lower alkoxy group, or an amino group which may be substituted by a lower alkyl group, and X2 is an oxygen atom or a group of the formula - NR52- (wherein R52 is a hydrogen atom or a lower alkyl group; X3 is an oxygen atom or a sulfur atom; R6 is a hydrogen atom, or a lower alkyl or lower alkenyl group which may have a substituent selected from the group consisting of a hydroxyl group, a lower alkoxy group, a lower alkylthio group and a heterocyclic group; n is 0 or 1; Y is a hydroxymethyl group, a group of the formula CO2R71 (wherein R71 is a hydrogen atom or a lower alkyl group), a group of the formula CONHR72 (wherein R72 is a hydrogen atom or a lower alkyl group which may have a substituent selected from the group consisting of a hydroxyl group, a carboxyl group and a sulfo group), a 1H-tetrazol-5-yl group, a sulfo group and a phosphono group; or a pharmaceutically acceptable salt thereof.
申请公布号 CA2084163(A1) 申请公布日期 1993.06.05
申请号 CA19922084163 申请日期 1992.11.30
申请人 BANYU PHARMACEUTICAL CO., LTD. 发明人 ISHIKAWA, KIYOFUMI;FUKAMI, TAKEHIRO;NAGASE, TOSHIO;MASE, TOSHIAKI;IHARA, MASAKI;YANO, MITSUO;NISHIKIBE, MASARU
分类号 A61K38/00;C07K5/02;C07K5/023;C07K5/06;C07K5/083;C07K5/087;(IPC1-7):C07K5/00;A61K38/05;A61K38/06;C07D401/12;A61K31/435 主分类号 A61K38/00
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