Nonapeptide and decapeptide analogs of LHRH, useful as LHRH antagonists, methods of making them, and their pharmaceutical uses
申请人:SYNTEX (U.S.A.) INC.
公开号:EP0049628A2
公开(公告)日:1982-04-14
Nonapeptide and decapeptide analogs of LHRH which have the formula
and the pharmaceutically acceptable salts thereof, wherein:
X is a D-alanyl residue wherein one hydrogen on C-3 is replaced by:
a) a carbocyclic aryl-containing radical selected from the group consisting of phenyl substituted with three or more straight chain lower alkyl groups, naphthyl, anthryl, fluorenyl, phenanthryl, biphenylyl and benzhydryl; or
b) a saturated carbocyclic radical selected from the group consisting of cyclohexyl substituted with three or more straight chain lower alkyl groups, perhydronaphthyl, perhydrobiphenylyl, perhydro-2,2-diphenylmethyl, and adamantyl; or
c) a heterocyclic aryl containing radical selected from the group consisting of radicals represented by the following structural formulas:
wherein A" and A' are independently selected from the group consisting of hydrogen, lower alkyl, chlorine, and bromine, and G is selected from the group consisting of oxygen, nitrogen, and sulfur;
A is an aminoacyl residue selected from the group consisting of L-pyroglutamyl, D-pyroglutamyl, N-acyl-L-prolyl, N-acyl-D-prolyl, N-acyl-D-tryptophanyl, N-acyl-D-phenylalanyl, N-acyl-D-p-halophenylalanyl, and N-acyl-X wherein X is as defined previously;
B is an amino acyl residue selected from the group consisting of D-phenylalanyl, D-p-halophenylalanyl, 2,2-diphenylglycyl, and X wherein X is as defined previously;
C is an amino acyl residue selected from the group consisting of L-tryptophanyl, D-tryptophanyl, D-phenylalanyl and X wherein X is as defined above;
E is glycinamide or -NH-R1, wherein R1 is lower alkyl, cycloalkyl, fluoro lower alkyl or
R2 is hydrogen or lower alkyl;
are disclosed. These compounds are LHRH antagonists.
LHRH 的非肽和十肽类似物,其分子式为
及其药学上可接受的盐类,其中
X是D-丙氨酰残基,其中C-3上的一个氢被下列物质取代
a) 一个含碳环芳基,选自由三个或三个以上直链低级烷基取代的苯基、萘基、蒽基、芴基、菲基、联苯基和二苯基组成的组;或
b) 饱和碳环基,选自由三个或三个以上直链低级烷基取代的环己基、过氢萘基、过氢联苯基、过氢-2,2-二苯基甲基和金刚烷基组成的组;或
c) 杂环芳基,选自由下列结构式所代表的基团组成的组:
其中 A "和 A'独立地选自氢、低级烷基、氯和溴组成的组,G 选自氧、氮和硫组成的组;
A 是氨基酰基残基,选自由 L-焦谷氨酰、D-焦谷氨酰、N-酰基-L-脯氨酰、N-酰基-D-脯氨酰、N-酰基-D-色氨酰、N-酰基-D-苯丙氨酰、N-酰基-D-对卤苯丙氨酰和 N-酰基-X 所组成的组,其中 X 如前定义;
B 是选自 D-苯丙氨酰、D-对卤代苯丙氨酰、2,2-二苯基甘氨酰和 X 所组成的组的氨基酰基残基,其中 X 如前所定义;
C 是氨基酰基残基,选自由 L-色氨酰、D-色氨酰、D-苯丙氨酰和 X 所组成的组,其中 X 如前所定义;
E 是甘氨酰胺或-NH-R1,其中 R1 是低级烷基、环烷基、氟低级烷基或-NH-R1。
R2 是氢或低级烷基;
这些化合物是 LHRH 拮抗剂。这些化合物是 LHRH 拮抗剂。