3-Acetylcoumarin was used as a precursor for the synthesis of novel fused heterocyclic compounds as chromeno[3,4-c]pyridine, chromeno[4,3-b]pyridine and pyrano[3,4-c]chromene derivatives in addition to the synthesis of 3-hetarylchromene derivatives. The chemical structures of newly synthesized compounds were avowed by means of spectral and analysis data. The novel synthesized compounds were estimated as antibacterial agents against Staphylococcus aureus and Escherichia coli bacteria.

中文翻译：

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某些新型Chromenopyridine，pyranochromene和3-Hetarylcoumarin衍生物的合成，表征和抗菌性评估

3-乙酰香豆素被用作前体，用于合成新型稠合杂环化合物，包括色酚[3,4- c ]吡啶，色酚[4,3- b ]吡啶和吡喃并[3,4- c ]色烯衍生物。 3-杂芳基色烯衍生物的合成。借助光谱和分析数据证明了新合成化合物的化学结构。估计新合成的化合物作为针对金黄色葡萄球菌和大肠杆菌的抗菌剂。