The tyrosinase-inhibitory effects of 2-phenyl-1,4-naphthoquinone analogs: importance of the (E)-β-phenyl-α,β-unsaturated carbonyl scaffold of an endomethylene type
作者:Sultan Ullah、Jinia Akter、Su J. Kim、Jungho Yang、Yujin Park、Pusoon Chun、Hyung R. Moon
DOI:10.1007/s00044-018-2267-9
日期:2019.1
(IC50 = 22.00 ± 1.63 μM), more potently inhibited mushroomtyrosinase than kojic acid (IC50 = 37.86 ± 2.21 μM). Cell-based assays using B16F10 cells (a melanoma cell line) showed 1c dose-dependently suppressed melanin production and more potently inhibited tyrosinase activity than kojic acid. Docking simulation results between 1c and tyrosinase and a kinetic study suggest that 1c is a competitive inhibitor
One-pot synthesis of indole-fused nitrogen heterocycles <i>via</i> the direct C(sp<sup>2</sup>)–H functionalization of naphthoquinones; accessibility for deep red emitting materials
作者:Subramaniyan Prasanna Kumari、Savarimuthu Philip Anthony、Subramaniapillai Selva Ganesan
DOI:10.1039/d2nj02024f
日期:——
A convenient one-pot, two-step methodology was developed for the transformation of readily available planar naphthoquinone derivatives into structurally complex indole-fused nitrogen heterocycles under aerobic conditions.
This work was aimed to the development of a set of new naphtoquinone derivatives that can act against glioma. The compounds were tested in order to find out their ability to inhibit the growth of glioma cells, and the results of these assays were correlated with electrochemical analysis and NMR-based reoxidation kinetic studies, suggesting that a redox mechanism underlies and may explain the observed biological behavior. In addition to a full description of the synthetic pathways, electrochemistry, NMR and single crystal X-ray diffraction data are provided. (C) 2015 Elsevier Masson SAS. All rights reserved.
HOEGBERG H. E., J. CHEM. SOC. PERKIN TRANS., 1979, PART 1, NO 10, 2517-2520
作者:HOEGBERG H. E.
DOI:——
日期:——
Pummerer; Huppmann, Chemische Berichte, 1927, vol. 60, p. 1449