Synthesis and Anti-bacterial Properties of Mono-carbonyl Analogues of Curcumin
作者:Guang Liang、Shulin Yang、Lijuan Jiang、Yu Zhao、Lili Shao、Jian Xiao、Faqing Ye、Yueru Li、Xiaokun Li
DOI:10.1248/cpb.56.162
日期:——
The synthesis of three series of curcumin analogues with mono-carbonyl is described. Their in vitro anti-bacterial activities against seven Gram-positive and Gram-negative bacteria were tested and the effect of substituents on the aryl ring and the space structure of the linking strain were discussed. It was observed that part of the derivatives displayed significant activity when compared with curcumin and most of them exhibited activity against the ampicillin-resisted Enterobacter cloacae. Compounds A12, B09, B13, B14 and C09 show remarkable antibacterial activity in vitro. The result showed that heterocycle or long-chain substituents may enhance the activity of curcumin analogues.
These compounds were evaluated for α-glucosidase inhibitory and glucose consumption-promoting activity in vitro. Compound 4l competitively and reversibly inhibited α-glucosidase (IC50 = 3.64 μM) with activity 14–fold higher than that of acarbose. Docking analysis substantiated these findings. In addition, compound 4l exhibited significant glucose consumption promoting activity at 1 μM.
Monocarbonyl Analogs of Curcumin with Potential to Treat Colorectal Cancer
作者:Marta Clariano、Vanda Marques、João Vaz、Salma Awam、Marta B. Afonso、Maria Jesus Perry、Cecília MP Rodrigues
DOI:10.1002/cbdv.202300222
日期:2023.3
small library of monocarbonyl analogs of curcumin 1a–q was synthesized. Lipophilicity and stability in physiological conditions were both assessed by HPLC-UV, while two different methods assessed the electrophilic character of each compound monitored by NMR and by UV-spectroscopy. The potential therapeutic effect of the analogs 1a–q was evaluated in human colon carcinoma cells and toxicity in immortalized
In the present study, a series of mono-carbonyl analogues of curcumin were designed and synthesized by deleting the reactive beta-diketone moiety, which is responsible for the pharmacokinetic limitation of curcumin. We demonstrated that 4 of 9 curcumin analogues were selective inhibitors of human and rodent 11 beta-HSD1. The level of this inhibitor was 4-20 times more than that of curcumin. Curcumin analogues weakly inhibited 11 beta-HSD2, and further analyses revealed that these compounds were highly selective, favoring 11 beta-HSD1. These 4 curcumin analogues are potential therapeutic agents for type-2 diabetes by targeting 11 beta-HSD1. The compound 8 displays anti-diabetic properties in diabetic mice induced by streptozocin and high-fat-diet (STZHFD). (C) 2014 Elsevier Masson SAS. All rights reserved.
Synthesis and anti-inflammatory activities of mono-carbonyl analogues of curcumin
Curcumin has been extensively studied for its anti-inflammatory activities. However, its potential beneficial effects on various disease preventions and treatments are limited by its unstable structure. The beta-diketone moiety renders curcumin to be rapidly metabolized by aldo -keto reductase in liver. In the present study, a series of curcumin analogues with more stable chemical structures were synthesized and several compounds showed an enhanced ability to inhibit lipopolysaccharide ( LPS)-induced TNF-alpha and IL-6 synthesis in macrophages. (C) 2007 Elsevier Ltd. All rights reserved.