Synthesis, biological evaluation, and correlation of cytotoxicity versus redox potential of 1,4-naphthoquinone derivatives
作者:Chien-Chang Shen、Shakil N. Afraj、Chia-Cheng Hung、Balaji D. Barve、Li-Ming Yang Kuo、Zhi-Hu Lin、Hisu-O. Ho、Yao-Haur Kuo
DOI:10.1016/j.bmcl.2021.127976
日期:2021.6
4-naphthoquinone derivatives of lawsone (1), 6-hydroxy-1,4-naphthoquinone (2), and juglone (3) were synthesized by alkylation, acylation, and sulfonylation reactions. The yields of lawsone derivatives 1a-1k (type A), 6-hydroxy-1,4-naphthoquinone derivatives 2a-2j (type B), and juglone derivatives 3a-3h (type C) were 52–99%, 53–96%, and 28–95%, respectively. All compounds were tested in vitro for the cytotoxicity
these cell lines. Our results showed that the effectiveness of compound 11a may be attributed to its suppression of the survival of HT-29. Secondly, in the Hoechst 33258 staining test, compound 11a-treated cells exhibited nuclear condensation typical of apoptosis. Additionally, cell cycle analysis by flow cytometry indicated that compound 11a arrested HT-29 cells in the S phase. Furthermore, cell death
Microwave-induced Monohydroxymethylation and Monoalkoxylation of 1,4-Naphthoquinones
作者:Vandana Bansal、Jyotsana Sharma、Rajinder N. Khanna
DOI:10.1039/a803513j
日期:——
1,4-Naphthoquinones and its derivatives have been hydroxymethylated and alkoxylated in the quinone ring using,respectively, formalin or an alcohol, in the presence of K2CO3 or HgO by heating or microwave irradiation.
The Acid-Catalyzed 2-O-Alkylation of Substituted 2-Hydroxy-1,4-naphthoquinones by Alcohols: Versatile Preparative Synthesis of Spinochrome D and Its 6-Alkoxy Derivatives
Abstract A series of substituted 2-alkoxy-1,4-naphthoquinone derivatives were obtained by acid-catalyzed condensation of substituted 2-hydroxy-1,4-naphthoquinones with propan-1-ol, butan-1-ol, or pentan-1-ol in good yields. Based on this reaction a versatile preparative synthesis of spinochrome D was developed. A series of substituted 2-alkoxy-1,4-naphthoquinone derivatives were obtained by acid-catalyzed
Synthesis of 2-Alkoxy 1,4-Naphthoquinone Derivatives as Antiplatelet, Antiinflammatory, and Antiallergic Agents.
作者:Jin-Cherng Lien、Li-Jiau Huang、Che-Ming Teng、Jih-Pyang Wang、Sheng-Chu Kuo
DOI:10.1248/cpb.50.672
日期:——
In our continuing search for novel antiplatelet, antiallergic, and antiinflammatory agents, 2-alkoxy derivatives of 1,4-naphthoquinone were prepared. Some of these compounds showed significant antiplatelet, antiallergic, and antiinflammatory activities. Among them, 2-propoxy-1,4-naphthoquinone and 2-butoxy-1,4-naphthoquinone exhibited potent inhibitory effect on neutrophil superoxide anion formation