title: Two new compounds from Dendrobium candidum.
abstract: Two new compounds were isolated from the stems of Dendrobium candidum: (R)-3,4-dihydroxy-5,4',alpha-trimethoxybibenzyl (1), named dendrocandin A; and 4-[2-[(2S,3S)-3-(4-hydroxy-3,5-dimethoxyphenyl)-2-hydroxymethyl-8-methoxy-2,3-dihydrobenzo[1,4]dioxin-6-yl]ethyl]-1-methoxyl benzene (2), dendrocandin B. Five previously known bibenzyls were also identified: 4,4'-dihydroxy-3,5-dimethoxybibenzyl (3), 3,4-dihydroxy-5,4'-dimethoxybibenzyl (4), 3-O-methylgigantol (5), dendrophenol (6), and gigantol (7).
authors.affiliation: Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
authors.forename: Chun-Lan
authors.initials: CL
authors.lastname: Wang
authors.forename: Shun-Xing
authors.initials: SX
authors.lastname: Guo
authors.forename: Jun-Shan
authors.initials: JS
authors.lastname: Yang
authors.forename: Pei-Gen
authors.initials: PG
authors.lastname: Xiao
mesh_terms: D002851:Chromatography, High Pressure Liquid; D002942:Circular Dichroism; D031667:Dendrobium / Q000737:chemistry*; D004146:Dioxanes / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D018547:Plant Stems / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013267:Stilbenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: C532905:3,4-dihydroxy-5,4',alpha-trimethoxybibenzyl; C532906:4-(2-(3-(4-hydroxy-3,5-dimethoxyphenyl)-2-hydroxymethyl-8-methoxy-2,3-dihydrobenzo(1,4)dioxin-6-yl)ethyl)-1-methoxybenzene; D004146:Dioxanes; D013267:Stilbenes