Journal ArticleDOI
Chemical constituents from Piper wallichii
Yan-Ni Shi,Lian Yang,Jin-Hua Zhao,Yi-Ming Shi,Yan Qu,Hong-Tao Zhu,Dong Wang,Chong-Ren Yang,Xing-Cong Li,Min Xu,Ying-Jun Zhang +10 more
TLDR
Fifteen known compounds including four triterpenoids, one sterol, one diketopiperazine alkaloid and nine phenolics were isolated from the stems of Piper wallichii and the structure of compound 1 was fully assigned by 1D and 2D NMR experiments for the first time.About:
This article is published in Natural Product Research.The article was published on 2015-01-09. It has received 22 citations till now.read more
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Journal ArticleDOI
Antifungal Amide Alkaloids from the Aerial Parts of Piper flaviflorum and Piper sarmentosum.
Yan-Ni Shi,Fang-Fang Liu,Fang-Fang Liu,Melissa R. Jacob,Xing-Cong Li,Hong-Tao Zhu,Dong Wang,Rong-Rong Cheng,Chong-Ren Yang,Min Xu,Ying-Jun Zhang +10 more
TL;DR: Sixty-three amide alkaloids, including three new, piperflaviflorine A, p Piper flaviflorum and Piper sarmentosum, and two previously synthesized ones, (1E,3S)-1-cinnamoyl-3- hydroxypyrrolidine and N-[7'-(4'-methoxyphenyl)ethyl]-2-methoxybenzamide (5), were isolated from the aerial
Journal ArticleDOI
Alkylated Salicylaldehydes and Prenylated Indole Alkaloids from the Endolichenic Fungus Aspergillus chevalieri and Their Bioactivities.
Li-Bin Lin,Yu-Qi Gao,Rui Han,Jian Xiao,Yi-Meng Wang,Qiang Zhang,Yi-Jie Zhai,Wen-Bo Han,Wenli Li,Jin-Ming Gao +9 more
TL;DR: In this paper, asperglaucins A and B (1 and 2) and neoechinulin F (8) were separated from the endolichenic fungus Aspergillus chevalieri SQ-8.
Journal ArticleDOI
Amides and neolignans from the aerial parts of Piper bonii.
Duo-Duo Ding,Yue-Hu Wang,Ya-Hui Chen,Ren-Qiang Mei,Jun Yang,Ji-Feng Luo,Yan Li,Chunlin Long,Chunlin Long,Yi Kong +9 more
TL;DR: The structures of p Piperbonamides A-F and piperbonins A-C were elucidated based on the analysis of 1D and 2D NMR and MS data and showed weak activity against platelet aggregation.
Journal ArticleDOI
A new tigliane-type diterpene from Euphorbia dracunculoides Lam
TL;DR: This is the first isolation of 8-hydroperoxy tigliane diterpene from the genus of Euphorbia, and all compounds were evaluated for their antifungal activities.
References
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Journal ArticleDOI
Study on the contents of aristololactams in piper wallichii and their renal cytotoxicities
TL;DR: In the study, three aristololactams were isolated from Piper wallichii and determined simultaneously by a HPLC method using a C18 column with a gradient elution of methanol and water to indicate that the test compounds showed a timeand dose-dependent cytotoxicity in HK-2 cells.
Journal Article
Study on the bioactive constituents of Piper wallichii
TL;DR: Investigation of the bioactive constituents in the stem of Piper wallichii finds vanillic acid and 4-hydroxy-3,5-dimethoxy-benzoic acid show scavenging activity against DPPH radical with ED50 and no compound shows inhibition activity against AchE.
Triterpenoids from sanguisorba-alpina
TL;DR: The roots of Sanguisorba alpina yielded 18 compounds of which five were novel, including four triterpenoid saponins and one new triterbenoid acid.
Journal ArticleDOI
Alkene Dihydroxylation with Malonoyl Peroxides: Catalysis Using Fluorinated Alcohols.
TL;DR: In this article, a two-step one-pot procedure was developed for the reaction of alkenes with cyclopropyl malonyl peroxide and subsequent hydrolysis to give syn-diols.
Journal Article
A new antiviral flavone glycoside from Vernonia cinerea Less.
R. N. Yadava,Mamta Raj +1 more