| 摘要 |
PROBLEM TO BE SOLVED: To obtain a novel compound that can absorb ultraviolet rays and is suitably useful as a sun-screening agent excellent in lipophilicity and cosmetic properties. SOLUTION: This compound is represented by formula I [R1 is -NH-F; R2 is -N-NH-Z-W; R3 is R1 , R2 , a 1-20C alkyl, a 2-20C hydroxyalkyl; F is a screening chromophoric group; Z is a divalent group bridging -NH- and -W; W is a group of formula II (R is a 1-30C hydrocarbon; a is 1, 2)], typically 2-(buty 1-4'-ylaminobenzoate)-4,6-bis [,3,3,3tetramethyl-1-[(trimethylsilyl) oxy]disiloxanyl]propyl-3-ylamino}-striazine. The compound of formula I is prepared by reaction of a compound of the formula III (X is chlorine car bromine) with a compound of the formula: R1 H, a compound of the formula: R2 H and the compound of the formula: R3 H.
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