Inhibitory effect of novel tetrahydropyrimidine-2(1H)-thiones on melanogenesis
摘要:
The series of imidazoldine-2-thiones 2 and tetrahydropyrimidine-2-thiones 3 were discovered as inhibitor of alpha-MSH-induced melanin production in melanoma B16 cells. The primary bioassay showed that 1-(4-ethylbenzyl)-tetrahydropyrimidine-2(1H)-thione 3e (> 100% inhibition at 10 mu M, IC50 = 1.2 mu M) and 1-(4-tert-butylbenzyl)-tetrahydropyrimidine-2(1H)-thione 3f (> 100% inhibition at 10 mu M, IC50 = 0.76 mu M) exhibited potent inhibitory effect against alpha-MSH-induced melanin production. Compounds 3 inhibit the biosynthesis of tyrosinase without affecting its catalytic activity in melanogenesis. (C) 2010 Elsevier Ltd. All rights reserved.
[EN] The present invention relates to a compound of formula (I) or a pharmaceutically acceptable salt or solvate thereof, wherein R1, R2, R3, R8 and R9 are as defined herein, as well as to compositions containing such a compound and the uses of such a compound. Compounds of formula (I) are especially useful in the treatment of pain. [FR] L'invention concerne un composé de formule (I) ou un sel ou solvate de celui-ci acceptable sur le plan pharmaceutique, R1, R2, R3, R8 et R9 étant tels que définis dans la description, ainsi que des compositions contenant un tel composé et les utilisations de ce composé. Les composés de formule (I) sont particulièrement utiles dans le traitement de la douleur.
Rise, Frode; Undheim, Kjell, Acta chemica Scandinavica. Series B: Organic chemistry and biochemistry, 1985, vol. 39, # 3, p. 195 - 202
作者:Rise, Frode、Undheim, Kjell
DOI:——
日期:——
Inhibitory effect of novel tetrahydropyrimidine-2(1H)-thiones on melanogenesis
The series of imidazoldine-2-thiones 2 and tetrahydropyrimidine-2-thiones 3 were discovered as inhibitor of alpha-MSH-induced melanin production in melanoma B16 cells. The primary bioassay showed that 1-(4-ethylbenzyl)-tetrahydropyrimidine-2(1H)-thione 3e (> 100% inhibition at 10 mu M, IC50 = 1.2 mu M) and 1-(4-tert-butylbenzyl)-tetrahydropyrimidine-2(1H)-thione 3f (> 100% inhibition at 10 mu M, IC50 = 0.76 mu M) exhibited potent inhibitory effect against alpha-MSH-induced melanin production. Compounds 3 inhibit the biosynthesis of tyrosinase without affecting its catalytic activity in melanogenesis. (C) 2010 Elsevier Ltd. All rights reserved.