Syntheses of 1,2,3-triazolyl salicylamides with inhibitory activity on lipopolysaccharide-induced nitric oxide production
摘要:
A 28-membered 1,2,3-triazolyl salicylamide library was synthesized via a Cu(I)-catalyzed azide-alkyne 1,3-dipolar cycloaddition and evaluated for their abilities to inhibit NO production in LPS-activated RAW264.7 macrophage cells. Among 28 analogues, 29g showed a significant inhibitory activity (IC50 = 12.8 mu M). The inhibitory effects of 29g on LPS-mediated NO production in macrophage cells appeared to be associated with the suppression of iNOS expression. (C) 2011 Elsevier Ltd. All rights reserved.
A rapid synthesis of lavendustin-mimetic small molecules by click fragment assembly
摘要:
Lavendustin-mimetic small molecules modifying the linker -CH(2)-NH- with an 1,2,3-triazole ring have been synthesized via a click chemistry. Two pharmacophoric fragments of lavendustin were varied to investigate chemical space and the auxophoric -CH(2)-NH- was altered to an 1,2,3-triazole for rapid click conjugation. The small molecules were evaluated against HCT116 colon cancer and CCRF-CEM leukemia cell lines. Among 28 analogues, 3-phenylpropyl ester 26b inhibited CCRF-CEM leukemia cell growth with GI(50) value of 0.9 mu M. (c) 2010 Elsevier Ltd. All rights reserved.