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Tang R, Zhang YQ, Hu DB, Yang XF, Yang J, San MM, Oo TN, Kong Y, Wang YH. New Amides and Phenylpropanoid Glucosides from the Fruits of Piper retrofractum. NATURAL PRODUCTS AND BIOPROSPECTING 2019; 9:231-241. [PMID: 31073809 PMCID: PMC6538700 DOI: 10.1007/s13659-019-0208-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Accepted: 04/21/2019] [Indexed: 05/12/2023]
Abstract
Two new amides (E)-N-cinnamoyl-2-methoxypiperidine (1) and (R)-1-(2-oxopyrrolidin-3-yl)-5,6-dihydropyridin-2(1H)-one (2), four new amide glucosides, retrofractosides A-D (3-6), and two new phenylpropanoid glucosides, retrofractosides E (7) and F (8), together with 24 known compounds (9-32) were isolated from the fruits of Piper retrofractum. The chemical structures of these new compounds were elucidated based on extensive spectroscopic analysis. All of these isolates (1-32) were evaluated for inhibitory activity against mouse platelet aggregation induced by the peptide AYPGKF-NH2. (E)-N-(Tetrahydro-2H-pyran-2-yl)cinnamamide (9) showed a weak inhibitory effect, with an inhibition ratio of 52.0% at a concentration of 150 μM.
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Affiliation(s)
- Rong Tang
- Key Laboratory of Economic Plants and Biotechnology and the Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Ya-Qiong Zhang
- School of Life Science & Technology, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Dong-Bao Hu
- School of Chemical Biology and Environment, Yuxi Normal University, Yuxi, 653100, People's Republic of China
| | - Xue-Fei Yang
- Key Laboratory of Economic Plants and Biotechnology and the Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
- Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw, 05282, Myanmar
| | - Jun Yang
- Key Laboratory of Economic Plants and Biotechnology and the Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
- Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw, 05282, Myanmar
| | - Myint Myint San
- Forest Research Institute, Yezin, Nay Pyi Taw, 05282, Myanmar
| | - Thaung Naing Oo
- Forest Research Institute, Yezin, Nay Pyi Taw, 05282, Myanmar
| | - Yi Kong
- School of Life Science & Technology, China Pharmaceutical University, Nanjing, 210009, People's Republic of China.
| | - Yue-Hu Wang
- Key Laboratory of Economic Plants and Biotechnology and the Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.
- Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw, 05282, Myanmar.
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