Synthesis, antibacterial, and DNA-PK evaluation of some novel 6-fluoro-7-(cyclic amino)-2-(thioxo or oxo)-3-substituted quinazolin-4-ones as structural analogues of quinolone and quinazolin-2,4-dione antibiotics
摘要:
Quinolones, isothiazoloquinolone, and quinazolin-2,4-diones represent a series of potent antibacterial agents. In this investigation, a series of novel 6-fluoro-7-(cyclic amino)-1-ethyl-2-(thioxo or oxo)-3-substituted quinazolin-4-ones were synthesized from a 6,7-difluoro-1-ethyl-2-(thioxo or oxo) quinazolin-4-one parent by esterification or amidification of the 3-NH followed by nucleophilic aromatic substitution of the 7-fluoro atom with cyclic secondary amines. The resulting compounds were subsequently evaluated for antibacterial activity but were inactive against the tested bacterial strains. Nevertheless, moderate activity against DNA-PK was observed at 10 A mu M for a selection of compounds.
Synthesis, antibacterial, and DNA-PK evaluation of some novel 6-fluoro-7-(cyclic amino)-2-(thioxo or oxo)-3-substituted quinazolin-4-ones as structural analogues of quinolone and quinazolin-2,4-dione antibiotics
摘要:
Quinolones, isothiazoloquinolone, and quinazolin-2,4-diones represent a series of potent antibacterial agents. In this investigation, a series of novel 6-fluoro-7-(cyclic amino)-1-ethyl-2-(thioxo or oxo)-3-substituted quinazolin-4-ones were synthesized from a 6,7-difluoro-1-ethyl-2-(thioxo or oxo) quinazolin-4-one parent by esterification or amidification of the 3-NH followed by nucleophilic aromatic substitution of the 7-fluoro atom with cyclic secondary amines. The resulting compounds were subsequently evaluated for antibacterial activity but were inactive against the tested bacterial strains. Nevertheless, moderate activity against DNA-PK was observed at 10 A mu M for a selection of compounds.
N-PROP-2-YNYL CARBOXAMIDE DERIVATIVES AND THEIR USE AS TRPA1 ANTAGONISTS
申请人:ORION CORPORATION
公开号:US20150376130A1
公开(公告)日:2015-12-31
Compounds of formula I, wherein A, B, X, Z and R
1
-R
6
, are as defined in the claims, exhibit TRPA 1 activity and are thus useful as TRPA1 modulators.
[EN] N-PROP-2-YNYL CARBOXAMIDE DERIVATIVES AND THEIR USE AS TRPA1 ANTAGONISTS<br/>[FR] DÉRIVÉS DE N-PROP-2-YNYL-CARBOXAMIDE ET LEUR UTILISATION À TITRE D'ANTAGONISTES DE TRPA1
申请人:ORION CORP
公开号:WO2014053694A1
公开(公告)日:2014-04-10
Compounds of formula I, wherein A, B, X, Z and R1-R6, are as defined in the claims, exhibit TRPA 1 activity and are thus useful as TRPA1 modulators.