Bioorganic & Medicinal Chemistry Letters 2004-02-09

2-hydroxy-4-isopropylbenzaldehyde, a potent partial tyrosinase inhibitor.

Ken-ichi Nihei, Yoshiro Yamagiwa, Tadao Kamikawa, Isao Kubo

Index: Bioorg. Med. Chem. Lett. 14(3) , 681-3, (2004)

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Abstract

Chamaecin (2-hydroxy-4-isopropylbenzaldehyde) was synthesized and tested for its tyrosinase inhibitory activity. It partially inhibits the oxidation of L-3,4-dihydroxyphenylalanine (L-DOPA) catalyzed by mushroom tyrosinase with an IC(50) of 2.3 microM. The inhibition kinetics analyzed by Dixon plots found that chamaecin is a mixed type inhibitor. This inhibition may come in part from its ability to form a Schiff base with a primary amino group in the enzyme.

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