Author
Chittaranjan Das
Bio: Chittaranjan Das is an academic researcher from University of Calcutta. The author has contributed to research in topics: Piper & Piperaceae. The author has an hindex of 2, co-authored 2 publications receiving 31 citations.
Topics: Piper, Piperaceae, Aryl
Papers
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TL;DR: Two new unsaturated amides were isolated from the total above-ground parts of Piper brachystachyum and were shown to be N-isobutyl-15 (3′,4′-methylenedioxyphenyl) 2E,4E-pentadecadienamide from spectroscopic and chemical investigations.
25 citations
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TL;DR: In this article, the methyl esters and piperidides of fourteen 5-aryl-2E,4E-pentadienoic acids have been synthesized starting from the corresponding aryl aldehydes.
7 citations
Cited by
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TL;DR: The secondary metabolites isolated from Piper species for the period 1907 to June 1996 have been reviewed in this paper, where nearly six hundred chemical constituents belonging to different classes of bioactive compounds are listed together with their source(s) and references.
849 citations
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TL;DR: The results showed that compounds 4 and 6 exhibited both activities while compounds 1, 2, 5, 8 and 11 showed only antituberculosis activity, the first report of the antituber tuberculosis and antiplasmodial activities for these compounds.
156 citations
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TL;DR: The n-hexane extracts of 19 Piper species, predominantly from China, were screened for their 5-lipoxygenase (5-LOX) and cyclo oxygengenase-1 (COX-1) inhibitory potential and showed considerable inhibitory activity against at least one of these two key enzymes of the arachidonic acid metabolism.
152 citations
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01 Jan 2004
131 citations
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TL;DR: A principal amide constituent, piperine, dose-dependently inhibited increase in serum GPT and GOT levels at doses of 2.5-10 mg/kg (p.o.) in D-GalN/LPS-treated mice, and this inhibitory effect was suggested to depend on the reduced sensitivity of hepatocytes to TNF-alpha.
89 citations