黄杉化学成分的研究

目的研究黄杉的化学成分。方法用色谱方法分离黄杉化学成分,用波谱技术(IR,UV,MS,1D和2D-NMR)鉴定结构。结果从黄杉树皮中分离得到6个化合物,分别鉴定为5,7,4′-trihydroxy-6-methylflavanone (poriol, I), 3,5,7,3′,4′-pentahydroxyflavonone (quercetin, II), 5,7,3′,5′-tetrahydroxy-6-methylflavanone (III), 5,7,3′,5′-tetrahydroxyflavanone (IV), 3,5,7,3′,5′-pentahydroxyflavanone (V)和5-hydroxy-6-methylchromone-7-O-β-D-glucopyranoside (VI)。结论III,VI为新化合物,所得6个化合物均为首次从该属植物中分得。

STUDIES ON THE CHEMICAL CONSTITUENTS OF PSEUDOTSUGA SINENSIS

AIM: To study the chemical constituents of Pseudotsuga sinensis Dode (Pinaceae). METHODS: To separate the constituents of P. sinensis by using various kinds of chromatography and identify their structures on the basis of spectral analysis. RESULTS: Six compounds were isolated from P. sinensis. Their structures were established as 5,7,4'-trihydroxy-6-methylflavanone (poriol, I), 3,5,7,3',4'- pentahydroxyflavonone (quercetin, II), 5,7,3',5'-tetrahydroxy-6- methylflavanone (III), 5,7,3',5'-tetrahydroxyflavanone (IV), 3,5,7,3',5'-pentahydroxyflavanone (V) and 5-hydroxy-6-methylchromone-7-O-beta-D-glucopyranoside (VI) based on the analysis of spectral data of IR, UV, MS, 1D and 2D-NMR. CONCLUSION: Compounds III and VI are new compounds. All of six compounds were isolated from this plant for the first time.