Allomelanin production
    2.
    发明授权
    Allomelanin production 有权
    异青霉素生产

    公开(公告)号:US06303106B1

    公开(公告)日:2001-10-16

    申请号:US09077912

    申请日:1998-09-25

    IPC分类号: A61K7135

    摘要: A method of producing a melanin comprises oxidizing a phenolic compound at one or more hydroxyl groups thereof, wherein the phenolic compound is selected from 5-hydroxyindole and derivatives thereof and compounds of formula (1) and the oxidation is provided by biotransformation in the presence of an oxidoreductase enzyme, the compound of formula (1), wherein R1 is H or OH; R2 is H, OH orOCH3; R3 is H or OH at least one of R1 and R3 being OH; R4 is selected from H , R, —COOX and R7—COOX, wherein R is an optionally substituted saturated or unsaturated alkyl group having from 1 to 12 carbon atoms, R7 is an optionally substituted saturated or unsaturated alkylene group having from 1 to 12 carbon atoms and X is selected from H and aliphatic and aromatic ester forming groups; and R5 and R6 is each independently selected from H, OH, NH2, OCH3, CH3, SH, NHCO2, NHCH3, COOH and saturated or unsaturated alkyl groups having up to 8 carbon atoms.

    摘要翻译: 一种生产黑色素的方法包括在其一个或多个羟基处氧化酚类化合物,其中酚类化合物选自5-羟基吲哚及其衍生物和式(1)化合物,氧化通过生物转化在存在 氧化还原酶,式(1)化合物,其中R 1是H或OH; R2是H,OH或OCH3; R 3为H或OH,R 1和R 3中的至少一个为OH; R4选自H,R,-COOX和R7-COOX,其中R是具有1至12个碳原子的任选取代的饱和或不饱和烷基,R7是具有1至12个碳原子的任选取代的饱和或不饱和亚烷基 原子,X选自H和脂族和芳族酯形成基团; 并且R 5和R 6各自独立地选自H,OH,NH 2,OCH 3,CH 3,SH,NHCO 2,NHCH 3,COOH和具有至多8个碳原子的饱和或不饱和烷基。