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You searched for: Source 2017 v.53 no.6 Remove constraint Source: 2017 v.53 no.6 Subject spectral analysis Remove constraint Subject: spectral analysis Subject chemical structure Remove constraint Subject: chemical structure Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
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1. A New Lignan Glucoside from Cyclea racemosa

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

2. Steroidal Saponin from Allium porrum

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

3. Two New Alkaloids from the Seeds of Cassia alata and Their Anti-Tobacco Mosaic Virus Activity

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