Patent ID: 6517742
Filing Date: 2003-02-11
Classification: A61K,A61Q,C07F,Y10S

Abstract:
A compound of the formula (I): in which:R1 represents an â€”NHâ€”F radical, R2 represents an â€”NHâ€”Zâ€”W radical, R3 is R1, R2, an NHR8 radical or an N(R8)2 radical, with R8 being a linear or branched C1-C20 alkyl radical, F represents a screening chromophore chosen from derivatives of benzylidenecamphor, of benzalmalonate, of benzoate, of benzotriazole, of benzimidazole, of benzoxazole, of benzothiazole, of salicylate, of cinnamate, and of cinnamonitrile, Z represents a divalent radical providing the connection between â€”NHâ€” an, â€”W, W represents either a silicone radical comprising at least one unit of formula (1): in which R denotes a saturated or unsaturated C1-C30 hydrocarbon group, a halogenated C1-C8 hydrocarbon group or a trimethylsilyloxy group and a is 1 or 2,or a radical of formula (2): â€”SiRâ€²1Râ€²2Râ€²3â€ƒâ€ƒ(2) in which Râ€²1, Râ€²2 and Râ€²3, which are identical or different, are linear or branched C1-C8 alkyl or alkenyl radicals.