Nouveaux 5-nitroimidazoles à noyau lactame hautement actifs : préparation et propriétés antibactériennes
摘要:
New 5-nitroimidazoles bearing a trisubstituted ethylenic double bond in position 2 were prepared by reacting various 1-alkyl-2-chloromethyl-5-nitroimidazole with 3-nitrolactam anions by S(RN)1 mechanism in phase-transfer catalysis conditions. These compounds showed in vitro and in vivo antianaerobic activity which was clearly greater than that of metronidazole. Structure-activity relationships have been discussed.
Nouveaux 5-nitroimidazoles à noyau lactame hautement actifs : préparation et propriétés antibactériennes
摘要:
New 5-nitroimidazoles bearing a trisubstituted ethylenic double bond in position 2 were prepared by reacting various 1-alkyl-2-chloromethyl-5-nitroimidazole with 3-nitrolactam anions by S(RN)1 mechanism in phase-transfer catalysis conditions. These compounds showed in vitro and in vivo antianaerobic activity which was clearly greater than that of metronidazole. Structure-activity relationships have been discussed.
Novel substituted nitroimidazoles are provided, for example, 2-(4,5-substituted-isoxazol-3-yl)-1-substituted-5-nitroimidazole; 2-(4,5-disubstituted-.DELTA..sup.2 -isoxazolin-3-yl)-1-substituted-5-nitroimidazole; or 2-(4,5-disubstituted-2-loweralkyl-isoxazolidin-3-yl)-1-substituted-5-nitro imidazole. These compounds have antibacterial and antiprotozoal activity, especially against human and animal trypanosomiasis and trichomoniasis.
Novel substituted nitroimidazoles are provided, for example, 2-(4,5-substituted-isoxazol-3-yl)-1-substituted-5-nitroimidazole; 2-(4,5-disubstituted-.DELTA..sup.2 -isoxazolin-3-yl)-1-substituted-5-nitroimidazole; or 2-(4,5-disubstituted-2-loweralkyl-isoxazolidin-3-yl)-1-substituted-5-nitro imidazole. These compounds have antibacterial and antiprotozoal activity especially against human and animal trypanosomiasis and trichomoniasis.