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 Vari-OUS 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,13C-NMR,¹H-¹H COSY,HMQC,HMBC,NOESY,and CD).Results A compound was isolated and identified as 2(5)-(3'-hydroxy-57-methoxy)-benz-3(S)-ethoxycarbonyl-6-trans-ethyl acrylate-8-methoxy-benzofuran.Conclusion This compound iS a novel compound named as catalpafurxin.