Microwave assisted synthesis of some hybrid molecules derived from norfloxacin and investigation of their biological activities
作者:Meltem Yolal Mentese、Hacer Bayrak、Yıldız Uygun、Arif Mermer、Serdar Ulker、Sengul Alpay Karaoglu、Neslihan Demirbas
DOI:10.1016/j.ejmech.2013.06.045
日期:2013.9
The treatment of hydrazide (16) with several aldehydes afforded N′-[(2-hydroxyphenyl)methylen]- (20), N′-[(3-hydroxy-4-methoxy phenyl)methylen]- (21) or N′-[1H-indol-3-ylmethylene]-2-[4-(2-methoxyphenyl)piperazin-1-yl]acetohydrazide (22). Then, compounds 14, 18, 19 and 22 were condensed with 7-[4-(chloroacetyl)piperazin-1-yl]-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (3) that was obtained
诺氟沙星通过形成硝基化合物被转化为7-(4-氨基-2-氟苯基)哌嗪衍生物(2)。由4- chlorophenacylbromide或溴乙酸乙酯与化合物的反应,进行含有1,3-噻唑或1,3-噻唑烷部分上的诺氟沙星衍生物的合成4 - 7获得,起始自2。3-氟-4- [4-(2-(2-甲氧基苯基)哌嗪-1-基]苯胺(14),5-[4-(2-甲氧基苯基)哌嗪-1-基]甲基} -4-苯基-4 H -1,2,4-三唑-3-硫醇(18)和[4-(2-甲氧基苯基)哌嗪-1-基]甲基} -1,3,4-恶二唑-2-硫醇(19由1-(2-甲氧基苯基)哌嗪起始经数步获得)。用几种醛处理酰肼(16)得到N '-[(2-羟基苯基)亚甲基]-(20),N '-[(3-羟基-4-甲氧基苯基)亚甲基]-(21)或N ' -[ 1H-吲哚-3-基亚甲基] -2- [4-(2-甲氧基苯基)哌嗪-1-基]乙酰肼(22)。然后