申请人:Yale University
公开号:US05100654A1
公开(公告)日:1992-03-31
A phosphorylated derivative of L-dopa of the formula ##STR1## wherein when X is ##STR2## wherein Z is --CH.sub.2, N, S or a linkage other than oxygen which renders the phosphate group resistant to hydrolysis by phosphatase enzymes in tissues and biological fluids, then Y is OQ, wherein Q is H or an alkyl with one to twelve carbon atoms, or wherein X is OQ, then Y is ##STR3## wherein R' is hydrogen or a pharmaceutically acceptable cation and R is a moiety which increases hydropobicity. The phosphorylated derivative of L-dopa is useful as an agent to increase the melanin content in mammalian skin and hair.
一种L-多巴的磷酸化衍生物,其化学式为##STR1##其中,当X为##STR2##时,Z为--CH.sub.2,N,S或其他使磷酸酯基在组织和生物液体中对酸性磷酸酶酶抵抗的键合,那么Y为OQ,其中Q为H或具有一到十二个碳原子的烷基,或者当X为OQ时,Y为##STR3##其中R'为氢或药学上可接受的阳离子,R为增加疏水性的基团。这种L-多巴的磷酸化衍生物可用作增加哺乳动物皮肤和毛发中黑色素含量的药物。