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从川芎(Ligusticum wallchii Franch)的酚性部分中分离得到一个新的苯酞类化合物Ⅰ,熔点190～191℃,[α]_D—105.5°,C_(12)H_4O_3。化合物Ⅰ的结构经化学和仪器分析测定,鉴定为4-羟基-3-丁基苯酞(4-Hydroxy-3-butyl phthalide),并用合成证实。
A new benzoquinone compound I was isolated from the phenolic part of Ligusticum wallchii Franch with a melting point of 190-191°C, [α]_D-105.5°, and C_(12)H_4O_3. The structure of Compound I was determined by chemical and instrumental analysis and identified as 4-Hydroxy-3-butyl phthalide and confirmed by synthesis.