Five new compounds from Dendrobium crystallinum.
Five new compounds, dencryol A (1), dencryol B (2), crystalltone (3), crystallinin (4), and 3-hydroxy-2-methoxy-5,6-dimethylbenzoic acid (5), together with six known compounds, dendronobilin B (6), syringic acid (7), apigenin (8), isoviolanthin (9), 6'''-glucosyl-vitexin (10), and palmarumycin JC2 (11), have been isolated from the stems of Dendrobium crystallinum, of which compounds 9-11 were isolated from the genus Dendrobium for the first time, and all the other compounds were first obtained from this plant. Their structures were established on the basis of spectroscopic analysis and literature data.
Wang
Lei
L
Key Laboratory of Modern Chinese Medicines, Ministry of Education, China Pharmaceutical University, Nanjing, China.
Zhang
Chao-Feng
CF
Wang
Zheng-Tao
ZT
Zhang
Mian
M
Xu
Luo-Shan
LS
D001565:Benzoates / Q000737:chemistry / Q000302:isolation & purification*; D001632:Bibenzyls / Q000737:chemistry / Q000302:isolation & purification*; D031667:Dendrobium / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D007783:Lactones / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010616:Phenanthrenes / Q000737:chemistry / Q000302:isolation & purification*; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification*; D014966:Xanthenes / Q000737:chemistry / Q000302:isolation & purification*
D001565:Benzoates; D001632:Bibenzyls; D004365:Drugs, Chinese Herbal; D007783:Lactones; D010616:Phenanthrenes; D012717:Sesquiterpenes; D014966:Xanthenes; C547998:crystallinin; C547997:crystalltone; C547991:dencryol A; C547992:dencryol B