Abstract
In order to determine the optimum size of heterocycle of lead compound 1 (6-methyl-3-phenethyl-3,4-dihydro-1H-quinoline-2-thione; IC50=0.8 μM) for inhibition of melanogenesis, we have synthesized and evaluated some benzimdazole-2(3H)-thiones 5a - e. The preliminary bioassay has shown that the benzimdazole-2(3H)-thione motif of 5 is essential structural unit for their inhibitory activity. Among all thiones 5a - e, the compound 5d strongly inhibited the formation of melanin with IC50 value of 1.3 μM.
Original language | English (US) |
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Pages (from-to) | 918-921 |
Number of pages | 4 |
Journal | Chemical and Pharmaceutical Bulletin |
Volume | 58 |
Issue number | 7 |
DOIs | |
State | Published - Jul 2010 |
Keywords
- Benzimdazole-2(3H)-thione
- Inhibitor
- Melanogenesis