[Phenylethanoid glycosides from stem of Chirita longgangensis var. hongyao].
OBJECTIVE
To isolate and elucidate the constituents from stem of Chirita longgangensis var. hongyao.


METHODS
The constituents were extracted with methanol and isolated by chromatography on silica gel, Sephadex LH-20 and ODS. The structures were determined by NMR and MS spectral analysis.


RESULTS
Five phenylethanoid glycosides were identified as 3, 4-dihydroxyphenyl alcohol-beta-D-glucopyranoside (1), 3, 4-dihydroxyphenyl alcohol-6-O-caffeoyl--D-glucopyranoside (calceolarioside B) (2), 3, 4-dihydroxyphenyl alcohol-beta-D-glucopyranosyl-(1 --> 3)-6-O-caffeoyl-beta-D-glucopyranoside (plantainoside D) (3), 3, 4-dihydroxyphenyl alcohol-beta-D-glucopyranosyl-(1 --> 3)-4-O-caffeoyl-beta-D-glucopyranoside (plantamajoside) (4), 3, 4-dihydroxyphenyl alcohol-beta-D-glucopyranosyl-(1 --> 3)-6-O-feruloyl-beta-D-glucopyranoside (scroside E) (5), respectively.


CONCLUSIONS
Compounds 3 and 5 were isolated for the first time from the family Gesneriaceae, and compounds 1, 2 and 4 were isolated for the first time from the genus Chirita.
Institute of Chinese Materia Medica, China Academy of Traditional Chinese Medicine, Beijing 100700, China. wangmyjun@yahoo.com.cn
Man-Yuan
MY
Wang
Lan
L
Yang
You-You
YY
Tu
D002396:Catechols / Q000737:chemistry / Q000302:isolation & purification; D003373:Coumaric Acids / Q000737:chemistry / Q000302:isolation & purification*; D004187:Disaccharides / Q000737:chemistry / Q000302:isolation & purification*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D019684:Magnoliopsida / Q000737:chemistry*; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
D002396:Catechols; D003373:Coumaric Acids; D004187:Disaccharides; D005960:Glucosides; D006027:Glycosides; C516918:plantainoside D; C520280:scroside E; C421173:plantamajoside