Synthesis, characterization and anti-bacterial activity of 5-(alkenyl)-2-amino- and 2-(alkenyl)-5-phenyl-1,3,4-oxadiazoles
作者:Mudasir R. Banday、Rayees H. Mattoo、Abdul Rauf
DOI:10.1007/s12039-010-0019-6
日期:2010.3
Fatty acid hydrazides of undec-10-enoic, (Z)-octadec-9-enoic, (Z)-12-hydroxyoctadec-9-enoic and (Z)-9-hydroxyoctadec-12-enoic acids are used as cheap starting materials in the synthesis of important biologically active 5-(alkenyl)-2-amino-1,3,4-oxadiazole and 2-(alkenyl)-5-phenyl-1,3,4-oxadiazole using cyanogen bromide and benzoyl chloride or benzoic acid as reagents, respectively. The structure of these compounds was confirmed by IR, 1H NMR, 13C NMR and Mass spectra. All the newly synthesized compounds were screened for their antibacterial activity. Compounds 2c, 2d, 3a, 3c and 3d showed good antimicrobial activity against E. coli where as compounds 2a and 2d were found active against all the bacteria.
十一-10-烯酸、(Z)-十八-9-烯酸、(Z)-12-羟基十八-9-烯酸和(Z)-9-羟基十八-12-烯酸的脂肪酸酰肼被用作廉价的起始原料,以溴化氰和苯甲酰氯或苯甲酸为试剂,合成具有重要生物活性的 5-(烯基)-2-氨基-1,3,4-恶二唑和 2-(烯基)-5-苯基-1,3,4-恶二唑、3,4-噁二唑和 2-(烯基)-5-苯基-1,3,4-噁二唑时,分别使用溴化氰和苯甲酰氯或苯甲酸作为试剂。红外光谱、1H NMR、13C NMR 和质谱证实了这些化合物的结构。对所有新合成的化合物进行了抗菌活性筛选。化合物 2c、2d、3a、3c 和 3d 对大肠杆菌表现出良好的抗菌活性,而化合物 2a 和 2d 则对所有细菌都有活性。