申请人:BIO-MEGA/BOEHRINGER INGELHEIM RESEARCH INC.
公开号:EP0320967A2
公开(公告)日:1989-06-21
Disclosed herein are derivatives of atrial natriuretic peptides of formula 1, wherein the exocyclic N-terminal peptide segment is deleted and the two cysteinyl residues (at positions 105 and 121) of the natural sequence are replaced with a trivalent unit, -NHCH(CO-)-Q-X-Y-CH₂CH₂CO- wherein Q is methylene, ethylene or CR'R" wherein R' and R" each independently is lower alkyl, X is oxy or thio, an Y is methylene or des-Y. The derivatives may be optionally substituted at various positions including positions 106, 107, and 124. The derivatives possess ANF-like activity and are indicated for treating hypertension and for treating pathological conditions resulting from an imbalance of body fluids and electrolytes.
Formula 1: wherein Q is is methylene, ethylene or CR'R" wherein R' and R" each independently lower alkyl;
R¹ and R⁴ each independently is Phe, 2FPhe, 3FPhe, 4FPhe, 2CF₃Phe, 3CF₃Phe or 4CF₃Phe;
R² is Gly, Ala or D-Ala;
R³ is Ile or Met;
R⁵ is Tyr or des-R⁵;
X is oxy or thio;
Y is methylene or des-Y; and
W is hydroxy, lower alkoxy, amino or lower alkylamino;
本文公开了式 1 的心房利钠肽衍生物,其中删除了外环 N 端肽段,并用三价单元取代了天然序列的两个半胱氨酰残基(位于 105 和 121 位)、-NHCH(CO-)-Q-X-Y-CH₂CH₂CO-,其中 Q 为亚甲基、亚乙基或 CR'R",其中 R' 和 R "各自独立地为低级烷基,X 为氧基或硫代,Y 为亚甲基或去乙基。这些衍生物可在不同位置(包括 106、107 和 124 位置)任选被取代。这些衍生物具有类似 ANF 的活性,适用于治疗高血压以及治疗体液和电解质失衡引起的病理状况。
式 1:其中 Q 是亚甲基、亚乙基或 CR'R",其中 R' 和 R "各自独立地为低级烷基;
R¹ 和 R⁴ 各自独立地为 Phe、2FPhe、3FPhe、4FPhe、2CF₃Phe、3CF₃Phe 或 4CF₃Phe;
R² 是 Gly、Ala 或 D-Ala;
R³ 是 Ile 或 Met;
R⁵ 是 Tyr 或 des-R⁵;
X 是氧或硫
Y 是亚甲基或 des-Y;以及
W 是羟基、低级烷氧基、氨基或低级烷基氨基;