A new monoterpene-flavanone conjugate, grammatin A (1), along with four known compounds (2–5), were isolated from the aerial parts of Chimonanthus grammatus. Their structures were elucidated through extensive analysis of NMR spectroscopic data in combination with the reported literature. All these compounds were isolated from this plant for the first time.

中文翻译：

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蜡梅气生部分的一种新的单萜-黄烷酮共轭物

从 Chimonanthus grammatus 的地上部分分离出一种新的单萜 - 黄烷酮缀合物，grammatin A (1) 以及四种已知化合物 (2-5)。通过对 NMR 光谱数据的广泛分析并结合报道的文献，阐明了它们的结构。所有这些化合物都是首次从这种植物中分离出来。