Structural Optimization of Berberine as a Synergist to Restore Antifungal Activity of Fluconazole against Drug‐Resistant Candida albicans. Issue 1 (4th November 2013)

• Record Type: Journal Article
• Authors: Liu, Hong; Wang, Liang; Li, Yan; Liu, Jiang; An, Maomao; Zhu, Shaolong; Cao, Yongbing; Jiang, Zhihui; Zhao, Mingzhu; Cai, Zhan; Dai, Li; Ni, Tingjunhong; Liu, Wei; Chen, Simin; Wei, Changqing; Zang, Chengxu; Tian, Shujuan; Yang, Jingyu; Wu, Chunfu; Zhang, Dazhi; Liu, Hua; Jiang, Yuanying
• Is Part Of: ChemMedChem. Volume 9:Issue 1(2014:Jan.)
• Page Start: 207
• Page End: 216
• Publication Date: 2013-11-04
• Subjects: Pharmaceutical chemistry -- Periodicals; 615.19005
• DOI: 10.1002/cmdc.201300332
• Languages: English
• ISSNs: 1860-7179

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>We have conducted systematic structural modification, deconstruction, and reconstruction of the berberine core with the aim of lowering its cytotoxicity, investigating its pharmacophore, and ultimately, seeking novel synergistic agents to restore the effectiveness of fluconazole against fluconazole‐resistant <italic>Candida albicans.</italic> A structure–activity relationship study of 95 analogues led us to identify the novel scaffold of <italic>N</italic>‐(2‐(benzo[<italic>d</italic>][1, 3]dioxol‐5‐yl)ethyl)‐2‐(substituted phenyl)acetamides <bold>7 a</bold>–<bold>l</bold>, which exhibited remarkable levels of in vitro synergistic antifungal activity. Compound <bold>7 d</bold> (<italic>N</italic>‐(2‐(benzo[<italic>d</italic>][1, 3]dioxol‐5‐yl)ethyl)‐2‐(2‐fluorophenyl)acetamide) significantly decreased the MIC₈₀ values of fluconazole from 128.0 μg mL⁻¹ to 0.5 μg mL⁻¹ against fluconazole‐resistant <italic>C. albicans</italic> and exhibited much lower levels of cytotoxicity than berberine toward human umbilical vein endothelial cells.</p> </abstract>