Respiratory syncytial virus fusion inhibitors. Part 5: Optimization of benzimidazole substitution patterns towards derivatives with improved activity.

Abstract:

:Extensive SAR studies and optimization of ADME properties of benzimidazol-2-one derivatives led to the identification of BMS-433771 (3) as an orally active RSV fusion inhibitor. In order to extend the structure-activity relationships for this compound series, substitution of the benzimidazole ring was examined with a view to establishing additional productive interactions between the inhibitor and functionality present in the proposed binding pocket. Amongst the compounds synthesized, the 5-aminomethyl analogue 10aa demonstrated potent antiviral activity towards wild-type RSV and retained excellent inhibitory activity towards a virus that had been developed to express resistance to BMS-433771 (3), data consistent with an additional productive interaction between the inhibitor and the fusion protein target.

journal_name

Bioorg Med Chem Lett

authors

Wang XA,Cianci CW,Yu KL,Combrink KD,Thuring JW,Zhang Y,Civiello RL,Kadow KF,Roach J,Li Z,Langley DR,Krystal M,Meanwell NA

doi

10.1016/j.bmcl.2007.05.102

subject

Has Abstract

pub_date

2007-08-15 00:00:00

pages

4592-8

issue

16

eissn

0960-894X

issn

1464-3405

pii

S0960-894X(07)00651-8

journal_volume

17

pub_type

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