作者:Bahira Hegazi、Hanan Ahmed Mohamed、Kamal Mohamed Dawood、Farid Abdel-Rahem Badria
DOI:10.1248/cpb.58.479
日期:——
Benzo[d]imidazole 3 and 1,2,4-triazin-5(2H)-one 6 were prepared by the reaction of starting ethyl (3-hydroxy-1H-inden-2-yl)(oxo)-acetate 2 with o-phenylenediamine and thiosemicarbazide respectively. Reaction of 1,4-dihydro-1-phenylindeno[1,2-c]pyrazole-3-carbohydrazide 8 with phenylisothiocyanate gave thiosemicarbazide 9, and its reaction with chloroacetic acid or phenacylbromides led to the formation of thiazolidinone-4-one 10 or 1,3-thiazoles 12a, b. The reactivity of hydrazide 8 towards fluorinated aldehyde, phthalic anhydride, and hydrazonoyl chlorides 15a, b was studied to give fluorinated hydrazones, imide bis-hydrazones 13—16. The newly synthesized compounds were screened for their cytotoxic activities and compounds 6, 8, 9 and 10 were found the most potentially cytotoxic. The detailed synthesis, spectroscopic and biological data are reported.
苯并[d]咪唑 3 和 1,2,4-三嗪-5(2H)-酮 6 是通过起始材料乙基 (3-羟基-1H-茚-2-基)(氧)-乙酸酯 2 分别与邻苯二胺和硫脲的反应制备的。1,4-二氢-1-苯基茚[1,2-c]吡唑-3-羟肼 8 与苯异硫氰酸酯的反应生成硫脲 9,随后与氯醋酸或苯基溴化物反应形成噻唑啉-4-酮 10 或 1,3-噻唑 12a, b。还研究了羟肼 8 对氟化醛、邻苯二甲酸酐和肼氟基氯化物 15a, b 的反应,得到了氟化肼酮和酰亚胺双肼 13—16。新合成的化合物进行了细胞毒性活性的筛选,结果显示化合物 6、8、9 和 10 具有较强的细胞毒性。详细的合成、光谱和生物数据已报道。