title: [Studies on glucosyloxybenzyl 2-isobutylmalates of Pleione bulbocodioides].
abstract: Ten glucosyloxybenzyl 2-isobutylmalates and one benzyl alcohol glycoside were isolated from the dry tuber of Pleione bulbocodioides, which is a specie of Orchidaceae family and its dry tuber is one of the main sources of traditional Chinese medicine "shanci-gu", by a combination of various column chromatographic methods, including ODS, macroporous adsorbent resin, Sepheadex LH-20, and preparative HPLC. Their structures were identified on the basis of chemical evidences and spectroscopic analysis asloroglossin (1), grammatophylloside A (2), cronupapine (3), (-)-(2R, 3S)-1-(4-β-D-glucopyranosyloxybenzyl)-4-methyl-2-isobutyltartrate (4), vandateroside II (5), grammatophylloside B (6), bis [4-(β-D-glucopyranosyloxy) -benzyl] (S) -2-isopropylmalate (7), gymnoside I (8), militarine (9), dactylorhin A (10), gastrodin (11). Compounds 1-7 were isolated from this genus for the firt time.
authors.forename: Shao-wei
authors.initials: SW
authors.lastname: Han
authors.forename: Chao
authors.initials: C
authors.lastname: Wang
authors.forename: Bao-song
authors.initials: BS
authors.lastname: Cui
authors.forename: Shuai
authors.initials: S
authors.lastname: Li
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification; D005960:Glucosides / Q000737:chemistry* / Q000302:isolation & purification; D008293:Malates / Q000737:chemistry* / Q000302:isolation & purification; D015394:Molecular Structure; D029595:Orchidaceae / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization
chemical_list: D004365:Drugs, Chinese Herbal; D005960:Glucosides; D008293:Malates