A cucurbitane triterpenoid, 7β-butoxy-3β-hydroxy-25-methoxycucurbita-5,23(E)-dien-19-al (1), was isolated from the fruit pulp of Momordica charantia. Structure determination of the new compound was accomplished by spectroscopic analyses including 1D and 2D NMR (1H, 13C, COSY, HMQC, HMBC, and NOESY) and EI-MS and comparison with the data of known analogues.

中文翻译：

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苦瓜果肉中的葫芦素醛

从苦瓜果肉中分离出葫芦烷三萜类化合物 7β-丁氧基-3β-羟基-25-甲氧基葫芦-5,23(E)-dien-19-al (1)。新化合物的结构确定是通过光谱分析完成的，包括 1D 和 2D NMR（1H、13C、COSY、HMQC、HMBC 和 NOESY）和 EI-MS，并与已知类似物的数据进行比较。