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.
L-多巴的磷酸化衍生物的化学式为##STR1##其中当X为##STR2##其中Z为--CH.sub.2、N、S或除氧以外的其他连接,使磷酸基对组织和生物液中的磷酸酶酶抗性时,Y为OQ,其中Q为H或含有1至12个碳原子的烷基,或者当X为OQ时,Y为##STR3##其中R'为氢或一种药用可接受的阳离子,R为增加亲水性的基团。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。