Synthesis and crystal structure characterization of two new antibacterial agents: 5-[1-(2,3- and 2,4-dichlorophenyl)-2-phenylethyl]-2,4,6-trichloropyrimidines
作者:H. Allouchi、Y. Fellahi、C. Héabert、Y. Frangin、C. Courseille
DOI:10.1002/jhet.5570400106
日期:2003.1
The synthesis of 5-[1-(2,3-dichlorophenyl)-2-phenylethyl]-2,4,6-trichloropyrimidine (4a) and 5-[1-(2,4-dichlorophenyl)-2-phenylethyl]-2,4,6-trichloropyrimidine (4b) is described. These compounds were prepared by chlorination of the corresponding 5-substituted barbituric acids obtained by treatment of the 5-ben-zylidenebarbituric acids with benzylzinc bromide in the preceding step. These new trichloropyrimidines
5- [1-(2,3-二氯苯基)-2-苯基乙基] -2,4,6-三氯嘧啶(4a)和5- [1-(2,4-二氯苯基)-2-苯基乙基]-的合成描述了2,4,6-三氯嘧啶(4b)。这些化合物是通过氯化相应的5-取代的巴比妥酸而制备的,所述5-取代的巴比妥酸是通过在先前步骤中用苄基溴化锌处理5-苯-亚苄基巴比妥酸而获得的。这些新的三氯嘧啶属于一系列嘧啶衍生物,它们显示出对不希望的人类腋窝和足部细菌菌群的体外抗菌活性。这些化合物的表征通过光谱法和X射线结构测定进行。化合物4a和4b在单斜晶系中结晶。在4a的晶体中有两个构象异构体A和B,它们都是相同的构象类型,并且与4b的结构不同。晶体凝聚力是由于每周进行的多次范德华相互作用而产生的。