Analogues of xanthones——Chalcones and bis-chalcones as α-glucosidase inhibitors and anti-diabetes candidates
摘要:
Two series of compounds (chalcones and bis-chalcones) were designed, synthesized, and evaluated as aglucosidase inhibitors (AGIs) with 1-deoxynojirimycin as positive control in vitro. Most of the compounds with two or four hydroxyl groups showed better inhibitory activities than 1-deoxynojirimycin towards aglucosidase with noncompetitive mechanism. Moreover, most of the hydroxy bis-chalcones exhibit good a-glucosidase inhibitory activities in enzyme test. Inspiringly, bis-chalcones 2g (at 1 mu M concentration) has stronger effect than 1-deoxynojirimycin on reducing the glucose level in HepG-2 cells (human liver cancer cell line). (C) 2017 Elsevier Masson SAS. All rights reserved.
Symmetric Bis-chalcones as a New Type of Breast Cancer Resistance Protein Inhibitors with a Mechanism Different from That of Chromones
作者:Evelyn Winter、Patrícia Devantier Neuenfeldt、Louise Domeneghini Chiaradia-Delatorre、Charlotte Gauthier、Rosendo Augusto Yunes、Ricardo José Nunes、Tânia Beatriz Creczynski-Pasa、Attilio Di Pietro
DOI:10.1021/jm401879z
日期:2014.4.10
Potent ABCG2 inhibitors were recently identified as asymmetric chromones with different types of substituents. We here synthesized symmetric bis-chalcones that were differently substituted and screened for their ability to inhibit mitoxantrone efflux from ABCG2-transfected HEK293 cells. Potent bis-chalcone inhibitors were identified, the efficiency depending on both position of the central ketone groups and the number and positions of lateral methoxy substituents. The best derivative, namely, 1p, was selective for ABCG2 over P-glycoprotein and MRP1, appeared not to be transported by ABCG2, and was at least as active on various drug-selected cancer cells overexpressing ABCG2. Compound 1p stimulated the ABCG2 basal ATPase activity by contrast to a chromone lead that inhibited it, suggesting different mechanisms of interaction. Combination of both types of inhibitors produced synergistic effects, leading to complete inhibition at very low
Bhaskar Reddy; Seshamma; Reddy, Journal of the Indian Chemical Society, 1991, vol. 68, # 5, p. 281 - 284
作者:Bhaskar Reddy、Seshamma、Reddy、Ramana Reddy
DOI:——
日期:——
REDDY, D. BHASKAR;SEENAIAH, B.;ESWARAIAH, S.;SESHAMMA, T.;RAMANA, REDDY M+, J. INDIAN CHEM. SOC., 66,(1989) N2, C. 893-896
作者:REDDY, D. BHASKAR、SEENAIAH, B.、ESWARAIAH, S.、SESHAMMA, T.、RAMANA, REDDY M+
DOI:——
日期:——
Analogues of xanthones——Chalcones and bis-chalcones as α-glucosidase inhibitors and anti-diabetes candidates
作者:Chao-Yun Cai、Li Rao、Yong Rao、Jin-Xuan Guo、Zhi-Zun Xiao、Jing-Yu Cao、Zhi-Shu Huang、Bo Wang
DOI:10.1016/j.ejmech.2017.02.007
日期:2017.4
Two series of compounds (chalcones and bis-chalcones) were designed, synthesized, and evaluated as aglucosidase inhibitors (AGIs) with 1-deoxynojirimycin as positive control in vitro. Most of the compounds with two or four hydroxyl groups showed better inhibitory activities than 1-deoxynojirimycin towards aglucosidase with noncompetitive mechanism. Moreover, most of the hydroxy bis-chalcones exhibit good a-glucosidase inhibitory activities in enzyme test. Inspiringly, bis-chalcones 2g (at 1 mu M concentration) has stronger effect than 1-deoxynojirimycin on reducing the glucose level in HepG-2 cells (human liver cancer cell line). (C) 2017 Elsevier Masson SAS. All rights reserved.
Rational design, synthesis, and pharmacological characterisation of dicarbonyl curcuminoid analogues with improved stability against lung cancer via ROS and ER stress mediated cell apoptosis and pyroptosis
clinical applications. In this article, two types of dicarbonyl curcumin analogues with improved stability were designed through the calculation of molecular stability by density functional theory. Twenty compounds were synthesised, and their anti-tumour activity was screened. A plurality of analogues had significantly stronger activity than curcumin. In particular, compound B2 ((2E,2′E)-3,3′-(1,4-