Use of an isothiocyanate, a thiocyanate or a mixture thereof as depigmenting agent
申请人:——
公开号:US20040077715A1
公开(公告)日:2004-04-22
The invention concerns the use if isothiocyanate of general formula (I): R
1
—N═C═S wherein: R
1
represents an alkyl, alkenyl, alkynyl, aryl, acetyl, alkylcarbonyl, alkoxy, cycloalkyl, aryloxy, arylcarbonyl group, carboxylic acid or a —(CH
2
)
n
R
3
group wherein n represents an integer ranging between 1 and 5 and R
3
represents a polar functional group, advantageously a halogen atom, a sulphoxide, carbonyl, nitro, thioester, thioether, sulphonyl, sulphinyl, nitrile group, carboxylic acid, carboxylic ester, alkylthio or hydroxyl, a thiocyanate of general formula (II): R
2
—S═C═N wherein: R
2
represents an alkyl, alkenyl, alkynyl, aryl, acctyl, alkylcarbonyl, alkoxy, cycloalkyl, aryloxy, arylcarbonyl group, carboxylic acid, carboxylic ester or a —(CH
2
)
n
R
3
group, wherein n represents an integer ranging between 1 and 5 and R
3
represents a polar functional group, advantageously a halogen atom, a sulphoxide, carbonyl, nitro, thioester, thioether, sulphonyl, sulphinyl, nitrile group, carboxylic acid, carboxylic ester, alkylthio or hydroxyl, or mixtures thereof for making a medicine or a cosmetic composition for inhibiting tyrosinase.
该发明涉及使用一般式(I)的异硫氰酸盐:R1—N═C═S,其中:R1代表烷基、烯基、炔基、芳基、乙酰基、烷基羰基、烷氧基、环烷基、芳氧基、芳基羰基、羧酸或—(CH2)nR3基团,其中n为1至5之间的整数,R3代表极性功能基团,有利的是卤素原子、亚砜、羰基、硝基、硫代酯、硫醚、磺酰基、亚磺酰基、腈基、羧酸、羧酸酯、烷基硫或羟基,一般式(II)的硫氰酸盐:R2—S═C═N,其中:R2代表烷基、烯基、炔基、芳基、乙酰基、烷基羰基、烷氧基、环烷基、芳氧基、芳基羰基、羧酸、羧酸酯或—(CH2)nR3基团,其中n为1至5之间的整数,R3代表极性功能基团,有利的是卤素原子、亚砜、羰基、硝基、硫代酯、硫醚、磺酰基、亚磺酰基、腈基、羧酸、羧酸酯、烷基硫或羟基,或其混合物,用于制备抑制酪氨酸酶的药物或化妆品组合物。