4,7,8-dihydro-2H-oxocin-3-one and its derivatives, key intermediates for synthesis of laurencin, from methyl 2-ethyl-2,5-dihydro-2-furoates is described. The structure and configuration of these compounds and the synthetic intermediates are defined clearly on the basis of the chemical and spectral evidence.
从甲基2-乙基-2,5合成cis-2-ethyl-8-formyl-3,4,7,8-dihydro-2H-oxocin-3-one及其衍
生物,合成
月桂酸的关键中间体描述了-二氢-
2-糠酸酯。这些化合物和合成中间体的结构和构型在
化学和光谱证据的基础上明确定义。