Six new azo dyes containing of 5 (4H)-oxazolone ring were prepared by diazotization of 4-
aminohippuric acid and coupling with N, N-dimethylaniline, 1-naphthol and 2-naphthol and …

In the present paper, we report the synthesis and pharmacological evaluation of a new
series of azo compounds with different groups (1‐naphthol, 2‐naphthol, and N, N …

In this study, six new compounds containing morpholine and 5 (4 H)-oxazolone rings were
synthesized. Structures of the new compounds using IR, 1 H NMR, mass spectroscopy and …

Ten azo compounds including azo-resveratrol (5) and azo-oxyresveratrol (9) were
synthesized using a modified Curtius rearrangement and diazotization followed by coupling …

Abstract Tyrosinase (EC 1.14. 18.1) is a key copper-containing metalloenzyme widely
distributed in nature and plays determinant role in melanin biosynthesis. The enzyme …

A series of 5‐substituted‐3‐[5‐hydroxy‐4‐pyrone‐2‐yl‐methymercapto]‐4‐amino‐1, 2, 4‐
triazole derivatives were synthesized by nucleophilic substitution reaction of 5‐hydroxy‐2 …

We synthesized a novel series of (E)-2-((substituted phenyl) diazenyl) phenyl 4-
methylbenzenesulfonate derivatives (2 and 3) and (E)-2-((substituted phenyl) diazenyl) …

Two series of novel kojic acid analogues (4a–j) and (5a–d) were designed and synthesized,
and their mushroom tyrosinase inhibitory activities was evaluated. The result indicated that …

In this study, twenty 3, 5-diaryl-4, 5-dihydro-1H-pyrazole derivatives with hydroxyl (s)(1a–1p,
2a–2d) were synthesized and their inhibitory activity on mushroom tyrosinase was …

In continuing our search for novel tyrosinase inhibitors, a series of 5-(substituted
benzylidene) thiazolidine-2, 4-diones were rationally designed and synthesized, and their …