Peptides useful as inhibitors or substrates of thrombin are of the formula
wherein
X is H, CH3 or an N-protecting group;
Y is [CH2]n-Q or
where Q is H, amino, amidino, imidazole, guanidino or isothioureido and n is 1-5, preferably 3-5, or Y is nitrophenyl, cyanophenyl, aminophenyl, pyridyl or the side chain of His, or is C3-C9 alkyl or C5-C10 aryl or alkylaryl optionally substituted by up to three groups selected from hydroxy and C1-C4 alkoxy,
Z typically a boronate or phosphonate group, for example a boron joined to the residue of a diol,
Aa1 is D-Phe or selected from certain unnatural hydrophobic amino acids, and
Aa2 is Pro or certain Pro analogues.
可用作凝血酶
抑制剂或底物的肽的式子为
式中
X 是 H、
CH3 或 N-保护基团;
Y 是 [CH2]n-Q 或
其中 Q 是 H、
氨基、脒基、
咪唑基、
胍基或异
硫脲基,n 是 1-5,最好是 3-5,或者 Y 是
硝基苯基、
氰苯基、
氨基苯基、
吡啶基或 His 的侧链,或者是 C3-C9 烷基或 C5-C10 芳基或烷基芳基,最多可任选被三个选自羟基和 C1-C4 烷氧基的基团取代、
Z 通常是
硼酸盐或
膦酸盐基团,例如与二元醇残基相连的
硼、
Aa1 是 D-Phe,或选自某些非天然疏
水氨基酸,以及
Aa2 是 Pro 或某些 Pro 类似物。