cremastra/二酸化ケイ素

OBJECTIVE To study the chemical constituents of Cremastra appendiculata. METHODS The compounds were isolated by repeated column chromatography with silica gel, Sephadex LH-20 and ODS-HPLC. The structures were elucidated by analysis of spectroscopic data(1H-NMR and 13C-NMR). RESULTS Ten compounds

To study the chemical constituents of "Shan-Ci-Gu" (the tuber of Cremastra appendiculata (D. Don) Makino), the compounds were isolated with silica gel and reverse phase silica gel as well as Sephadex column chromatographic method. Their structures were elucidated on the basis of modern spectra

OBJECTIVE To study the chemical constituents of the corm of the planted Cremastra appendiculata. METHODS The compounds were isolated by column chromatography with silica gel and Sephadex LH-20, and their structures were elucidated by means of spectroscopic methods including 2D NMR

OBJECTIVE To investigate the chemical constituents from the tuber of the planted Cremastra appendiculata. METHODS The compounds were isolated by column chromatography over silica gel, Sephadex LH-20 and RP-HPLC, and their structures were elucidated on the basis of spectroscopic

OBJECTIVE To study the chemical constituents from the ethyl acetate extracts of Cremastra appendiculata. METHODS The compounds from the ethyl acetate extracts were isolated by the silica gel column and Sephadex LH-20 column chromatography, their structures were elucidated by the spectral analysis