Synthesis, characterization, crystal structures, and antibacterial activity of some new 1-(3,4,5-trimethoxybenzoyl)-3-aryl thioureasreas
作者:AAMER SAEED、RASHEED AHMAD KHERA、NAEEM ABBAS、MUHAMMAD LATIF、IMRAN SAJID、ULRICH FLÖRKE
DOI:10.3906/kim-0810-44
日期:——
Synthesis of some novel 1-(3,4,5-trimethoxy)benzoyl-3- arylthiourea derivatives (1a-o) was accomplished in 2 steps. The synthetic route involves the reaction of 1-(3,4,5-trimethoxy)benzoyl chloride with potassium thiocyanate in 1:1 molar ratio in acetone to afford the corresponding isothiocyante followed by treatment with suitably substituted anilines. The structures of the products were established by elemental analyses, IR, ^1H- and ^13}C-NMR, and mass spectroscopy and for 1b and 1m from single crystal X-ray diffraction data. All of the synthesized compounds (1a-o) were screened for antibacterial activity against gram positive and gram negative bacterial strains and were found to exhibit low activity towards the tested microorganisms, compared to chloramphenicol, the standard drug.
一些新型 1-(3,4,5-三甲氧基)苯甲酰基-3-芳基硫脲衍生物 (1a-o) 的合成分两步完成。 合成路线是将 1-(3,4,5-三甲氧基)苯甲酰氯与硫氰酸钾以 1:1 的摩尔比在丙酮中反应,得到相应的异硫氰酸钾,然后用适当取代的苯胺进行处理。 通过元素分析、红外光谱、^1H- 和 ^13}C-NMR、质谱以及单晶 X 射线衍射数据,确定了 1b 和 1m 产物的结构。 对所有合成的化合物(1a-o)都进行了抗菌活性筛选,与标准药物氯霉素相比,这些化合物对革兰氏阳性和阴性细菌菌株的抗菌活性较低。