Study on chemical constituents of Bletilla striata(I) / 第二军医大学学报

ABSTRACT

Objective: To study the chemical constituents of Bletilla striata (Thunb. ) Reichb. f. Methods: The con-stituents were separated and purified by column chromatography with silica gel and Sephadex LH-20,and were identified byspectral analysis. Results: Five compounds were identified as 2, 7-dihydroxy-4-methoxy-9, 10-dihydrophenanthrene (1), 2, 7-dihydroxy-3, 4-dimethoxyphenanthrene (2), 3, 7-dihydroxy-2, 4-dimethoxyphenanthrene (3 ), 3', 3--dihydroxy--5-methoxybiben-zyl(4), p-hydroxybenzaldehyde (5), Conclusion: Compound 2, 3, 4 are isolated from this plant for the first time.