申请人:BIO-MEGA/BOEHRINGER INGELHEIM RESEARCH INC.
公开号:EP0383190A2
公开(公告)日:1990-08-22
Disclosed herein are peptides of the formula
Y-R¹-R²-R³-R⁴-R⁵-R⁶-Z
wherein R¹ to R⁵ are designated amino acid residues; R⁶ is Phe, homoPhe or an amino acid residue derived from 2-amino-3-cyclohexylpropionic acid, 2-amino-3-(4-lower alkoxy)phenyl)propionic acid or 2-amino-3-(4-halophenyl)propionic acid; Y is Phe, desamino-Phe, (lower alkanoyl)-Phe, p-haloPhe, Tyr, desamino-Tyr or (lower alkanoyl)-Tyr, or Y is the decapeptide radical W-Val-R⁷-Ser-R⁸-R⁹-Thr-Glu-R¹⁰-Ser-Phe wherein W is hydrogen or lower alkanoyl and R⁷ to R¹⁰ are designated amino acids residues, or Y is a fragment of the decapeptide radical wherein from one to nine of the amino acid residues (i.e. Val to Ser) may be deleted serially from the amino terminus of the decapeptide radical; and Z is hydroxy, amino, lower alkylamino or di(lower alkyl)amino. The peptides inhibit mammalian ribonucleotide reductase and are indicated for preventing or ameliorating abnormal cell proliferation.
此处公开的是式中的肽
Y-R¹-R²-R³-R⁴-R⁵-R⁶-Z
其中 R¹ 至 R⁵ 是指定的氨基酸残基;R⁶ 是 Phe、homoPhe 或衍生自 2-氨基-3-环己基丙酸、2-氨基-3-(4-低级烷氧基)苯基)丙酸或 2-氨基-3-(4-卤代苯基)丙酸的氨基酸残基;Y 是 Phe、desamino-Phe、(低级烷酰基)-Phe、p-haloPhe、Tyr、desamino-Tyr 或 (低级烷酰基)-Tyr,或 Y 是十肽基 W-Val-R⁷-Ser-R⁸-R⁹-Thr-Glu-R¹⁰-Ser-Phe,其中 W 是氢或低级烷酰基,R⁷ 至 R¹⁰ 是指定的氨基酸残基、或 Y 是十肽自由基的片段,其中 1 至 9 个氨基酸残基(即 Val 至 SerZ是羟基、氨基、低级烷基氨基或二(低级烷基)氨基。这些肽能抑制哺乳动物核糖核苷酸还原酶,适用于预防或改善异常细胞增殖。