梓实中的新苯并呋喃

A new benzofuran in Catalpa ovata

目的研究梓实的化学成分。方法采用各种色谱技术进行分离纯化,通过理化常数和光谱分析鉴定化合物的结构。结果通过UV、IR、ESI-MS、1H-NMR、13C-NMR、1H-1HCOSY、HMQC、HMBC、NOESY和CD等光谱分析鉴定新化合物为2(S)-[3′-羟基-5′-甲氧基]苯基-3(S)-甲酸乙酯基-6-反丙烯酸乙酯基-8-甲氧基苯并呋喃[2(S)-(3′-hydroxy-5′-methoxy)-benz-3(S)-ethoxycarbonyl-6-trans-ethylacrylate-8-methoxy-benzofuran]。结论该化合物为新化合物,命名为梓呋新。

Objective To study the chemical constituents in fruits of Catalpa ovata.Methods Various chromatographic techniques were used to separate and purify the constituents.Structures of the compounds were elucidated by physicochemical properties and spectral analysis (UV, IR, ESI-MS, 1H-NMR , 13 C-NMR , 1H- 1H COSY , HMQC, HMBC, NOESY, and CD).Results A compound was isolated and identified as 2(S)-(3′-hydroxy-5′-methoxy)-benz-3(S)-ethoxycarbonyl-6-trans-ethyl acrylate-8-methoxy-benzofuran.Conclusion This compound is a novel compound named as catalpafurxin.