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Design, Synthesis, and Biological Evaluation of 1‐[(Biarylmethyl)methylamino]‐2‐(2,4‐difluorophenyl)‐3‐(1 H ‐1,2,4‐triazol‐1‐yl)propan‐2‐ols as Potent Antifungal Agents: New Insights into Structure–Activity Relationships
Author(s) -
Guillon Rémi,
Pagniez Fabrice,
Rambaud Charlotte,
Picot Carine,
Duflos Muriel,
Logé Cédric,
Le Pape Patrice
Publication year - 2011
Publication title -
chemmedchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.817
H-Index - 100
eISSN - 1860-7187
pISSN - 1860-7179
DOI - 10.1002/cmdc.201100262
Subject(s) - aspergillus fumigatus , fluconazole , chemistry , moiety , stereochemistry , azole , antifungal , structure–activity relationship , combinatorial chemistry , substituent , pharmacology , biochemistry , biology , microbiology and biotechnology , in vitro
We recently reported the design and synthesis of azole antifungal agents with a focus on modifications to the side chain appended to the propanol group. Herein we have identified a series of new 1‐[(biarylmethyl)methylamino] derivatives with broad‐spectrum antifungal activities against the most prevalent human pathogenic fungi ( Candida spp. and Aspergillus fumigatus ). Compounds containing a flexible benzylamine moiety were clearly shown to yield the best antifungal activities, without the need for a hydrogen‐bond acceptor substituent directly attached to the para position. We were also able to determine that selected compounds are able to overcome gene overexpression and point mutations that lead to reduced susceptibility or resistance against current treatments, such as fluconazole. As the minor differences observed with small structural modifications cannot be explain with only a three‐dimensional model of CYP51, adequate physicochemical parameters must be evaluated in terms of antifungal potency, bioavailability, and toxicity. Therefore, structure–activity relationship studies such as these reveal new insights for the development of future antifungal therapies.