Molecular Spur Gears Comprising Triptycene Rotators and Bibenzimidazole-Based Stators
摘要:
Dynamic gearing of molecular spur gears, the most common type of mechanical gear, is elucidated. Molecular design and conformational analysis show that derivatives of 4,4-bis(triptycen-9-ylethynyl)bibenzimidazole represent suitable constructs to investigate gearing behavior of collateral triptycene (Tp) groups. To test this design, DFT calculations (B97-D/Def2-TZVP) were employed and the results suggest that these molecules undergo geared rotation preferentially to gear slippage. Synthesis of derivatives was carried out, providing a series of molecular spur gears, including the first desymmetrized spur gear molecules, which were subsequently subjected to stereochemical analysis.
Molecular Spur Gears Comprising Triptycene Rotators and Bibenzimidazole-Based Stators
摘要:
Dynamic gearing of molecular spur gears, the most common type of mechanical gear, is elucidated. Molecular design and conformational analysis show that derivatives of 4,4-bis(triptycen-9-ylethynyl)bibenzimidazole represent suitable constructs to investigate gearing behavior of collateral triptycene (Tp) groups. To test this design, DFT calculations (B97-D/Def2-TZVP) were employed and the results suggest that these molecules undergo geared rotation preferentially to gear slippage. Synthesis of derivatives was carried out, providing a series of molecular spur gears, including the first desymmetrized spur gear molecules, which were subsequently subjected to stereochemical analysis.
[EN] BENZIMIDAZOLE ANTIVIRAL AGENTS<br/>[FR] AGENTS ANTIVIRAUX À BASE DE BENZIMIDAZOLE
申请人:GLAXOSMITHKLINE LLC
公开号:WO2011097491A1
公开(公告)日:2011-08-11
Provided are compounds of Formula (I) and (II) and pharmaceutically acceptable salts thereof, their pharmaceutical compositions, their methods of preparation, and their use for treating viral infections mediated by a member of the Flaviviridae family of viruses such as hepatitis C virus (HCV).
Compounds having the formula I wherein
wherein R
1
, R
2
, R
3
, R
4
, X
1
, X
2
, X
3
and X
4
and as defined herein are Hepatitis C virus NS5b polymerase inhibitors. Also disclosed are compositions and methods for treating an HCV infection and inhibiting HCV replication.