3-Aryl-1-(2-naphthyl)-prop-2-en-1-ones were reacted with ethyl cyanoacetate to produce 4-aryl-6-(2-naphthyl)-2-oxo-1,2-dihydropyridine-3-carbonitriles, which were treated with ethyl chloroacetate to give the corresponding ester. Treatment of the latter ester with hydrazine hydrate or anthranilic acid afforded hydrazides and benzoxazines. The hydrazides were reacted with benzaldehyde or phenylisothiocyanate to afford the corresponding hydrazone and thiosemicarbazide derivatives, which were cyclized with chloroacetic acid or thioglycolic acid to the corresponding thiazole derivatives. 3-Aryl-1-(2-naphthyl)-prop-2-en-1-ones were either condensed with malononitrile under different conditions to produce carbonitrile derivatives or treated with active methylene reagents to afford the substituted cyclohexene derivatives. The structure assignment of the new compounds is based on chemical and spectroscopic evidence. Some of these compounds exhibited antimicrobial activities comparable to Ampicillin® as reference drug.
3-芳基-1-(2-
萘基)-丙-2-烯-1-酮与乙基
氰乙酸酯反应,生成4-芳基-6-(2-
萘基)-2-氧-1,2-
二氢吡啶-3-
氰基,随后与乙基
氯乙酸酯处理以得到相应的酯。将后续酯与
水合
肼或
邻氨基苯甲酸处理,得到
肼和苯并
噁唑衍
生物。这些
肼与
苯甲醛或苯异
硫氰酸酯反应,得到相应的
肼亚胺和
噻唑半卡巴
肟衍
生物,然后与
氯乙酸或
硫醇酸环化,生成相应的
噻唑衍
生物。3-芳基-1-(2-
萘基)-丙-2-烯-1-酮在不同条件下与马隆腈缩合生成
氰基衍
生物,或与活性亚甲基试剂反应生成取代的
环己烯衍
生物。新化合物的结构指派基于
化学和光谱证据。这些化合物中的一些显示出与
阿莫西林®相当的抗微
生物活性。