Synthesis and antibacterial studies of a new series of 1,2-bis(1,3,4-oxadiazol-2-yl)ethanes and 1,2-bis(4-amino-1,2,4-triazol-3-yl)ethanes
摘要:
The acylhydrazones 3, obtained by the treatment of succinic acid dihydrazide 2 with furfural, nitrofurfuraldehydediacetate and substituted arylfurfurals, on oxidative cyclization with bromine in acetic acid yielded 1,2-bis(1,3,4-oxadiazol-2-yl)ethanes 4 which are further converted into 1,2-bis(4-amino-1,2,4-triazol-3-yl)ethanes 5 with hydrazine hydrate. The newly synthesised compounds are characterised by analytical, IR, NMR and mass spectral data. Most of the newly synthesised compounds have been found to be active against both Gram positive and Gram negative bacteria at less than 6 mu g/mL concentration. (C) 2000 Editions scientifiques et medicales Elsevier SAS.
Synthesis and antibacterial studies of a new series of 1,2-bis(1,3,4-oxadiazol-2-yl)ethanes and 1,2-bis(4-amino-1,2,4-triazol-3-yl)ethanes
摘要:
The acylhydrazones 3, obtained by the treatment of succinic acid dihydrazide 2 with furfural, nitrofurfuraldehydediacetate and substituted arylfurfurals, on oxidative cyclization with bromine in acetic acid yielded 1,2-bis(1,3,4-oxadiazol-2-yl)ethanes 4 which are further converted into 1,2-bis(4-amino-1,2,4-triazol-3-yl)ethanes 5 with hydrazine hydrate. The newly synthesised compounds are characterised by analytical, IR, NMR and mass spectral data. Most of the newly synthesised compounds have been found to be active against both Gram positive and Gram negative bacteria at less than 6 mu g/mL concentration. (C) 2000 Editions scientifiques et medicales Elsevier SAS.
Additional heteropolycyclic compounds and their use as metabotropic glutamate receptor antagonists
申请人:Edwards Louise
公开号:US20050272779A1
公开(公告)日:2005-12-08
The present invention relates to new compounds of formula I,
to pharmaceutical formulations containing the compounds, and to the use of the compounds in the prevention and/or treatment of mGluR5 receptor-mediated disorders.
The present invention relates to new compounds of formula I,
a process for their preparation and new intermediates prepared therein, pharmaceutical formulations containing said compounds and to the use of said compounds in therapy.
ADDITIONAL HETEROPOLYCYCLIC COMPOUNDS AND THEIR USE AS METABOTROPIC GLUTAMATE RECEPTOR ANTAGONISTS
申请人:Edwards Louise
公开号:US20080045571A1
公开(公告)日:2008-02-21
The present invention relates to new compounds of formula I,
to pharmaceutical formulations containing the compounds, and to the use of the compounds in the prevention and/or treatment of mGluR5 receptor-mediated disorders.