Publication Year: 2017 / Source: 2017 v.53 no.6 / Subject: spectral analysis / Text availability: Citation in PubAg

Author:: Jian-Hua Shao; Xue-Wei Zhang; Zi-Ling Dong; Si-Hui Li; Ben-Jie Miao; Ke-Zhi Cheng
Source:: Chemistry of natural compounds 2017 v.53 no.6 pp. 1025-1027
ISSN:: 0009-3130
Subject:: Cyclea; chemical structure; glucosides; lignans; spectral analysis
Abstract:: ... A new lignan glucoside 1, along with two known lignans (2, 3), was isolated from Cyclea racemosa Oliv. Its structure was elucidated as (+)-7′-methoxylariciresinol 4-O-β-D-glucopyranoside on the basis of extensive spectroscopic analyses. ...
DOI:: 10.1007/s10600-017-2193-y
: https://doi.org/10.1007/s10600-017-2193-y

Author:: L. N. Gvazava; A. V. Skhirtladze
Source:: Chemistry of natural compounds 2017 v.53 no.6 pp. 1093-1095
ISSN:: 0009-3130
Subject:: Allium porrum; chemical structure; fractionation; spectral analysis; steroid saponins
Abstract:: ... A new steroidal glycoside (1) was isolated by fractionation of total extracted substances from Allium porrum. Its structure was determined as (25R)-5α-spirostan-3β,6β-diol-12-one 3-O-β-D-glucopyranosyl-(1→2)-[β-D-fucopyranosyl-(1→3)]-β-D-glucopyranosyl-(1→4)-β-D-galactopyranoside using chemical transformations, physical constants, and spectral data. ...
DOI:: 10.1007/s10600-017-2208-8
: https://doi.org/10.1007/s10600-017-2208-8

Author:: Xiao-Qing Xu; Xu-Hua Huang; Jia Chen; Jian-Hua Shao; Chun-Chao Zhao
Source:: Chemistry of natural compounds 2017 v.53 no.6 pp. 1035-1037
ISSN:: 0009-3130
Subject:: Viburnum; chromatography; flavonoids; glycosides; spectral analysis
Abstract:: ... A new flavonoid glycoside 1, along with seven known compounds (2–8), was isolated from Viburnum macrocephalum f. keteleeri by repeated column chromatography. Its structure was identified as apigenin-7-O-[6-O-(5-methoxy-3-hydroxy-3-methyl-5-oxovaleryl)]-β-D-glucopyranoside (1) by spectral analysis. ...
DOI:: 10.1007/s10600-017-2196-8
: https://doi.org/10.1007/s10600-017-2196-8

Author:: Xiuli Xu; Shujiang Zhao; Liyuan Yin; Ying Yu; Zhengkun Chen; Huihui Shen; Li Zhou
Source:: Chemistry of natural compounds 2017 v.53 no.6 pp. 1056-1058
ISSN:: 0009-3130
Subject:: Aspergillus; Candida albicans; Staphylococcus aureus; antibacterial properties; mass spectrometry; nuclear magnetic resonance spectroscopy; spectral analysis
Abstract:: ... Methyl (3-hydroxy-4-(2-hydroxy-6-methylheptan-2-yl)benzoyl)glycinate (1), a new sydonic acid derivative with glycinate, together with sydonic acid (2), sydowic acid (3), and 7-deoxy-7,14-didehydrosydonic acid (4), were isolated from a marine-derived Aspergillus sydowii strain CUGB-F126. Their structures were elucidated by spectroscopic analysis, including high-resolution mass spectroscopy, and 1D ...
DOI:: 10.1007/s10600-017-2200-3
: https://doi.org/10.1007/s10600-017-2200-3

Author:: Ming-Jen Cheng; Ming-Der Wu; Hing-Yuen Chan; Jih-Jung Chen; Yen-Lin Chen; Ih-Sheng Chen; Yu-Ming Hsu; Gwo-Fang Yuan
Source:: Chemistry of natural compounds 2017 v.53 no.6 pp. 1072-1074
ISSN:: 0009-3130
Subject:: Monascus kaoliang; fungi; nuclear magnetic resonance spectroscopy; red yeast rice; rice; sesquiterpenoids; spectral analysis
Abstract:: ... A new sesquiterpene derivative, 10-methoxythujopsene (1), was isolated from the red mould rice of Monascus kaoliang. The structure was determined by extensive NMR and MS spectroscopic analysis. The relative configuration of 1 was established by the use of ROESY spectroscopic data. ...
DOI:: 10.1007/s10600-017-2203-0
: https://doi.org/10.1007/s10600-017-2203-0

Author:: Yan Yang; Shan-Zhai Shang; Wei Zhao; Huan-huan Xing; Hang-Ying Ma; Ling Zhou; Min Zhou; Yan-Qing Ye; Hai-Yan Wu; Gang Du; Dong-Lai Zhu; Qiu-Fen Hu
Source:: Chemistry of natural compounds 2017 v.53 no.6 pp. 1127-1130
ISSN:: 0009-3130
Subject:: Senna alata; alkaloids; antiviral properties; chemical structure; nuclear magnetic resonance spectroscopy; seed extracts; seeds; spectral analysis; viruses
Abstract:: ... Two new alkaloids, 3-(hydroxymethyl)-6,9-dimethyl-7H-benzo[de]quinolin-7-one (1) and 3-(hydroxymethyl)-8-methoxy-6,9-dimethyl-7H-benzo[de]quinolin-7-one (2), together with two known alkaloids (3 and 4) were isolated from the seeds of Cassia alata. Their structures were determined by means of HR-ESI-MS and extensive 1D and 2D NMR spectroscopic studies. Compounds 1–4 were tested for their anti-tobac ...
DOI:: 10.1007/s10600-017-2215-9
: https://doi.org/10.1007/s10600-017-2215-9

Author:: Huan-huan Xing; Neng-Jun Xiang; Li-Xuang Liu; Guo-Rong Yang; Yan-Fei Shen; Yan Yang; Ling Zhou; Hang-Ying Ma; Min Zhou; Hai-Yan Wu; Gan-Peng Li; Qiu-Fen Hu
Source:: Chemistry of natural compounds 2017 v.53 no.6 pp. 1052-1055
ISSN:: 0009-3130
Subject:: Swertia; enzyme activity; metabolites; spectral analysis; xanthones
Abstract:: ... Two new xanthones, atroxanthones A and B (1 and 2), together with four known xanthones (3–6), were isolated from the whole herb of Swertia atroviolacea. The structures of the metabolites were established on the basis of detailed spectroscopic analysis. Compounds 1 and 2 were evaluated for their anti-5α-reductase activity. The results revealed that 1 and 2 had weak activity with reductase inhibitio ...
DOI:: 10.1007/s10600-017-2199-5
: https://doi.org/10.1007/s10600-017-2199-5

Main content area