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    • 10. 发明授权
    • Merocyanine derivatives
    • 梅花菁衍生物
    • US07790769B2
    • 2010-09-07
    • US12086647
    • 2006-12-11
    • Barbara WagnerAstrid WaltherBernd Herzog
    • Barbara WagnerAstrid WaltherBernd Herzog
    • A61K31/136C07C211/26
    • C07C317/44C07C255/31C07C2601/16
    • Disclosed are merocyanine derivatives of formula (1), wherein R1 and R2 independently from each other are branched C4-C22alkyl; or branched C4-C12 alkenyl; R3 and R4 independently from each other are cyano; COR7, COOR7; CONR7R8; SO2(C6-C12)aryl; C2-C12alk-1-enyl; C3-C12cycloalk-1-enyl; C2-C12alk-1-inyl; C2-C12heteroalkyl; C3-C5heterocycloalkyl; C6-C10aryl; or C1-C9heteroaryl; wherein at least one of R3 and R4 is cyano; R5 and R6 independently from each other are hydrogen; C1-C6alkyl; C5-C8cycloalkyl which may be substituted by one or more than one C1-C4alkyl; and R7 and R8 independently from each other are hydrogen; C1-C22alkyl; C2-C12alkenyl; C2-C12alkinyl; C3-C12cycloalkyl; C3-C12cycloalkenyl; —(CH2)tCOOH; C7-C12aralkyl; C1-C12heteroalkyl; C2-C11heteroaralkyl; C6-C10aryl; C1-C9heteroaryl. The compounds are useful as UV absorbers for protecting human hair and skin against the damaging effect of UV radiation.
    • 公开了式(1)的部花青衍生物,其中R 1和R 2彼此独立地为支链C 4 -C 22烷基; 或支链C 4 -C 12烯基; R 3和R 4彼此独立地是氰基; COR7,COOR7; CONR7R8; SO2(C6-C12)芳基; C2-C12烷-1-烯基; C 3 -C 12环烯-1-烯基; C2-C12alk-1-inyl; C 2 -C 12杂烷基; C3-C5杂环烷基; C6-C10芳基; 或C 1 -C 9杂芳基; 其中R 3和R 4中的至少一个是氰基; R5和R6彼此独立地是氢; C1-C6烷基; 可被一个或多于一个C 1 -C 4烷基取代的C 5 -C 8环烷基; 并且R 7和R 8彼此独立地是氢; C 1 -C 22烷基; C 2 -C 12烯基; C 2 -C 12炔基; C 3 -C 12环烷基; C3-C12环烯基; - (CH 2)t COOH; C7-C12芳烷基; C 1 -C 12杂烷基; C 2 -C 11杂芳烷基; C6-C10芳基; C1-C9杂芳基。 这些化合物可用作紫外线吸收剂,用于保护人体毛发和皮肤免受紫外线辐射的破坏作用。