期刊
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
卷 28, 期 2, 页码 103-106出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bmcl.2017.12.003
关键词
Peganum harmala; Quinazoline alkaloids; Cytotoxicity
资金
- National Natural Science Foundation of China [81773604, 81172958]
- Fund of State Key Laboratory of Phytochemistry and Plant Resources in West China [P2012-KF01]
Seventeen quinazoline alkaloids and derivatives, containing two pairs of new epimers, named as (S)- and (R)-1-(2-aminobenzyl)-3-hydroxypyrrolidin-2-one beta-D-glucopyranosyl-(1 -> 6)-beta-D-glucopyranoside (1, 2), (S)- and (R)- vasicinone beta-D-glucopyranosyl-(1 -> 6)-beta-D-glucopyranoside (3, 4), and a new enantiomer (12b), together with six known ones (5-8, 10, and 12a), and three pairs of known enantiomers (9, 11, and 13), were isolated from the ethanol extracts of the seeds of Peganum harmala L.. Their structures including the absolute configuration were elucidated by using 1D and 2D NMR, and ECD calculation approaches. The cytotoxic activities of all isolated compounds were evaluated. 11 showed moderate cytotoxicity against PC-3 cells with an IC50 value of 15.41 mu M. (C) 2017 Elsevier Ltd. All rights reserved.
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