Results 171 to 180 of about 1,758 (205)

Diarylheptanoids from the rhizomes of Zingiber officinale

Phytochemistry, 2004
Seven new diarylheptanoids, i.e., (3S,5S)-3,5-diacetoxy-1,7-bis(4-hydroxy-3-methoxyphenyl)heptane, (3R,5S)-3-acetoxy-5-hydroxy-1,7-bis(4-hydroxy-3-methoxyphenyl)heptane, (3R,5S)-3,5-dihydroxy-1-(4-hydroxy-3,5-dimethoxyphenyl)-7-(4-hydroxy-3-methoxyphenyl)heptane, (5S)-5-acetoxy-1,7-bis(4-hydroxy-3-methoxyphenyl)heptan-3-one, 5-hydroxy-1-(3,4-dihydroxy ...
Jianping, Ma, Xiaoling, Jin, Li, Yang, Zhong-Li, Liu   +3 more
openaire   +2 more sources

Diarylheptanoids from Alpinia officinarum

Journal of Asian Natural Products Research, 2006
A new diarylheptanoid, along with five known diarylheptanoids, was isolated from the rhizomes of Alpinia officinarum (Zingiberaceae). The structure of the new compound was determined to be trans,trans-1(3'-methoxy-4'-hydroxyphenyl)-7-phenyl-5-ol-4,6-dien-3-heptanone on the basis of spectral and chemical evidence.
N, An, L-Z, Xu, Z-M, Zou, S-L, Yang
openaire   +2 more sources

Diarylheptanoids: Potent Anticancer Agents

Clinical Cancer Drugs, 2021
Abstract: Diarylheptanoids are widely distributed among species belonging to the family Betulaceae. Being highly polar in nature, they can either be isolated from plants by using sophisticated chromatographic techniques or can be synthesized in the laboratory.
openaire   +1 more source

A cytotoxic diarylheptanoid from Viscum cruciatum

Phytochemistry, 2001
A diarylheptanoid, 1,7-di-(3',4'-dihydroxyphenyl)-4-hepten-3-one, hirsutanone, has been isolated from the methanolic extract of the aerial parts of Viscum cruciatum (Viscaceae) and characterized by spectroscopic methods and chemical transformations.
C, Martín-Cordero, M, López-Lázaro, M A, Agudo, E, Navarro, J, Trujillo, M J, Ayuso   +5 more
openaire   +2 more sources

Diarylheptanoids from Curcuma comosa

Phytochemistry Letters, 2009
Abstract Three new diarylheptanoids, designated 1-(3,4-dihydroxyphenyl)-7-(4-hydroxyphenyl)-(6 E )-6-hepten-3-ol ( 1 ), 1-(3-hydroxyphenyl)-7-(3,4-dihydroxyphenyl)-3-methoxy-(6 E )-6-heptene ( 2 ), (3 R , 5 R )-1-(3,4-dihydroxyphenyl)-7-phenyl-heptane-3,5-diol ( 3 ) and three known compounds, were isolated from rhizomes of Curcuma comosa ...
Rawiwun Kaewamatawong, Preecha Boonchoong, Nongnit Teerawatanasuk   +2 more
openaire   +1 more source

Minor diarylheptanoid glycosides of Alnus rubra bark

Phytochemistry, 2000
The diarylheptanoid (S)-1,7-bis-(4-hydroxyphenyl)-heptan-3-one-5-O-beta-D-xylopyranosi de, and two known compounds, 1,7-bis-(3,4-dihydroxyphenyl)-heptan-3-one-5-O-beta-D-glucopyranos ide and platyphylloside were isolated from Alnus rubra bark. Structures were established by application of spectrometric techniques.
J, Chen, R F, Gonzalez-Laredo, J J, Karchesy   +2 more
openaire   +2 more sources

Structure-antiemetic-activity of some diarylheptanoids and their analogues

Phytomedicine, 2002
The structure-activity relationship of diarylheptanoids and their analogues inhibitory of emesis induced by copper sulfate in young chicks was investigated by testing 19 compounds. The compounds are 5 diarylheptanoids isolated from Alpinia katsumadai (Zingiberacea), 5 chemical derivatives of them, 6 analogues isolated from Zingiber officinale rhizome ...
Y, Yang, K, Kinoshita, K, Koyama, K, Takahashi, S, Kondo, K, Watanabe   +5 more
openaire   +2 more sources

The chemistry of natural diarylheptanoids

1995
Publisher Summary Diarylheptanoids constitute a distinct group of natural plant metabolites characterized by two aromatic rings linked by a linear seven-carbon aliphatic chain. They may be divided into two subgroups—that is, open chain and macrocyclic diarylheptanoids.
openaire   +1 more source

Diarylheptanoids from the leaves ofAlnus hirsuta Turcz

Archives of Pharmacal Research, 2000
Diarylheptanoids, (5S)-1,7-bis-(3,4-dihydroxyphenyl)-5-hydroxyheptane-3-one (1, hirsutanonol), (5S)-1,7-bis-(3,4-dihydroxyphenyl)-heptane-3-one-5-O-beta-D-xylopyranosi de (2, oregonin), (5R)-1,7-bis-(3,4-dihydroxyphenyl)-heptane-5-O-beta-D-xylopyranoside (3), and (5R)-1,7-bis-(3,4-dihydroxyphenyl)-heptane-5-O-beta-D-glucopyranoside (4) were isolated ...
M W, Lee, M S, Park, D W, Jeong, K H, Kim, H H, Kim, S H, Toh   +5 more
openaire   +2 more sources

Diarylheptanoid Glycosides from Dioscorea Nipponica Rhizomes

Fitoterapia
A group of previously undescribed diarylheptanoids with mono/di-glucose substitution, diodiarylheptosides A-F (1-6), together with six known diarylheptanoids (7-12) were isolated from the rhizomes of Dioscorea nipponica. Their structures were established by comprehensive UV, IR, HR-ESI-MS and NMR analyses, and their absolute configurations were ...
Qiong-Lin, Meng, Jun, Chi, Yi-Xiao, Li, Wei-Jin, Zhang, Ling-Xia, Zhang, Zhi-Min, Wang, Li-Ping, Dai   +6 more
openaire   +2 more sources