PMID- 16938270 OWN - NLM STAT- MEDLINE DCOM- 20061114 LR - 20151119 IS - 0006-291X (Print) IS - 0006-291X (Linking) VI - 349 IP - 1 DP - 2006 Oct 13 TI - Synthesis, discovery and mechanism of 2,6-dimethoxy-N-(4-methoxyphenyl)benzamide as potent depigmenting agent in the skin. PG - 39-49 AB - In this study, a new skin-depigmenting agent, 2,6-dimethoxy-N-(4-methoxyphenyl)benzamide (DMPB), was synthesized using a combination of benzoic acid and aniline. DMPB exhibited significant depigmentation ability on the UV B-induced hyperpigmentation of the brown guinea pig skin. In addition, the 100ppm treatment with this compound had a 30% inhibitory effect on melanin pigment generation in the melan-a cell line without significant cell toxicity. To search for relationship with the depigmentation, the effects of DMPB on the tyrosinase and dopachrome tautomerase were evaluated. DMPB had no effect on tyrosinase. However, it accelerated dopachrome transformation into 5,6-dihydroxyindole-2-carboxylic acid (DHICA) in the presence of dopachrome tautormerase. In addition, intracellular level of dopachrome tautomerase in melan-a cells was increased by treatment of DMPB. These results suggest that the pigment-lightening effects of DMPB might be due to biased production of DHICA-eumelanin induced by dopachrome tautormerase activation. FAU - Choi, Sang Yoon AU - Choi SY AD - Korea Food Research Institute, Songnam, Republic of Korea. FAU - Hwang, Jae Sung AU - Hwang JS FAU - Kim, Sanghee AU - Kim S FAU - Kim, Sun Yeou AU - Kim SY LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20060810 PL - United States TA - Biochem Biophys Res Commun JT - Biochemical and biophysical research communications JID - 0372516 RN - 0 (2,6-dimethoxy-N-(4-methoxyphenyl)benzamide) RN - 0 (Aniline Compounds) RN - 0 (Anisoles) RN - 0 (Benzamides) RN - 0 (Indoles) RN - 4790-08-3 (5,6-dihydroxy-2-indolylcarboxylic acid) RN - 8SKN0B0MIM (Benzoic Acid) RN - EC 1.14.18.1 (Monophenol Monooxygenase) RN - EC 5.3.- (Intramolecular Oxidoreductases) RN - EC 5.3.3.12 (dopachrome isomerase) RN - SIR7XX2F1K (aniline) SB - IM MH - Aniline Compounds/chemistry MH - Animals MH - Anisoles/*chemical synthesis/*chemistry MH - Benzamides/*chemical synthesis/chemistry MH - Benzoic Acid/chemistry MH - Cell Line, Tumor MH - Enzyme Activation MH - Guinea Pigs MH - Humans MH - Indoles/chemistry MH - Intramolecular Oxidoreductases/chemistry MH - Models, Chemical MH - Monophenol Monooxygenase/chemistry MH - Skin/*drug effects EDAT- 2006/08/30 09:00 MHDA- 2006/11/15 09:00 CRDT- 2006/08/30 09:00 PHST- 2006/07/13 00:00 [received] PHST- 2006/07/21 00:00 [accepted] PHST- 2006/08/30 09:00 [pubmed] PHST- 2006/11/15 09:00 [medline] PHST- 2006/08/30 09:00 [entrez] AID - S0006-291X(06)01689-5 [pii] AID - 10.1016/j.bbrc.2006.07.206 [doi] PST - ppublish SO - Biochem Biophys Res Commun. 2006 Oct 13;349(1):39-49. doi: 10.1016/j.bbrc.2006.07.206. Epub 2006 Aug 10.