Zhongguo Zhong Yao Za Zhi
August 2024
Objective: To study the chemical constituents of Mongolian medicine Halenia corniculata.
Methods: Positive phase and reversed phase silica gel, as well as Sephadex LH-20 methods were used to separate and purify. The structure of the isolated constituents was identified according to the NMR spectroscopy data and the literature data.
Objective: To study the chemical constituents of traditional Mongolian medicine Usnea longissima.
Methods: The compounds were isolated and purified by the methods of solvent extraction and chromatographic technique, and their structures were identified on the basis of the analyses of spectral data.
Results: Three compounds were obtained and identified as 4-hydroxy-2-[ (2-hydroxy-4-methoxy-6-methylbenzoyl) oxy]-6-methylbenzoic acid (1), dibutyl phthalate (2) and diisobutyl phthalate (3).