申请人:Research Corporation
公开号:US04318904A1
公开(公告)日:1982-03-09
A peptide affinity label of the formula (I): ##STR1## wherein X is a radical capable of acting as a leaving group in a nucleophilic substitution reaction; A is an aromatic amino acid residue; B is H, or a C.sub.1 -C.sub.4 alkyl group, or aryl; Y is selected from the group consisting of hydrogen, aroyl, C.sub.1 -C.sub.6 acyl, and Q--(A)--.sub.n, wherein Q=hydrogen, aroyl, or C.sub.1 -C.sub.6 acyl, n=1-10, A is an amino acid residue selected from the aliphatic, hydroxy-containing, carboxylic acid group, and amide-thereof-containing, aromatic, sulfur-containing and imino-containing amino acids; and wherein J is selected from the group consisting of --CH.sub.2 --, --CH.sub.2 --CH.sub.2 --,--CH.sub.2 --CH.sub.2 --CH.sub.2 --, --CH.dbd.CH-- and --CH(OH)--CH.sub.2. The affinity label is useful for irreversibly inactivating thrombin and trypsin-like enzymes and may be used as a potential anticlotting agent.
一种肽亲和标记物的公式(I):##STR1## 其中X是能够在亲核取代反应中作为离去基团的基团;A是芳香族氨基酸残基;B是H,或C.sub.1-C.sub.4烷基,或芳基;Y选自氢,芳酰基,C.sub.1-C.sub.6酰基和Q--(A)--.sub.n的群,其中Q=氢,芳酰基或C.sub.1-C.sub.6酰基,n=1-10,A是选自脂肪族,含羟基,羧酸基,含酰胺的,芳香族,含硫和亚胺的氨基酸残基;J选自--CH.sub.2 --,--CH.sub.2 --CH.sub.2 --,--CH.sub.2 --CH.sub.2 --CH.sub.2 --,--CH.dbd.CH--和--CH(OH)--CH.sub.2的群。该亲和标记物可用于不可逆地失活凝血酶和类胰蛋白酶酶,并可用作潜在的抗凝血剂。