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Sunil Kumar Talapatra

Bio: Sunil Kumar Talapatra is an academic researcher from University of Calcutta. The author has contributed to research in topics: Diterpene & Michelia. The author has an hindex of 16, co-authored 85 publications receiving 747 citations.


Papers
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TL;DR: In this paper, a new α-tetralone derivative named (−)-regiolone has been isolated with juglone, betulinic acid and sitosterol from the stem-bark of Juglans regia.

71 citations

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TL;DR: The structure of pongaglabol has been established as 5-hydroxyfurano(8,7-4″,5″)flavone on the basis of spectral and chemical evidence.

69 citations

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TL;DR: The structures of isopongglabol and 6-methoxyisopongaglabol have been established as 4′-hydroxyfurano(8,7-4″,5″)flavone and 4′ -hydroxy-6- methoxyfurano (8, 7-4′, 5″)Flavone, respectively, on the basis of the spectral evidence and they have been confirmed by synthesis.

44 citations

Journal ArticleDOI
TL;DR: Goniopedaline, a new phenanthrene lactam, aristololactam A-II and its N,O-diacetyl derivative, taliscanine (second natural occurrence), aurantiamide acetate and β-sitosterol and its β- d -glucoside have been isolated from the leaves and twigs of Goniothalamus sesquipedalis as discussed by the authors.

34 citations


Cited by
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Journal ArticleDOI
TL;DR: The Shikimate Pathway as mentioned in this paper is a metabolic tree with many branches, which is a tree-structured approach for the analysis of the human metabolic pathway. Critical Reviews in Biochemistry and Molecular Biology: Vol. 25, No. 5, pp 307-384.
Abstract: (1990). The Shikimate Pathway — A Metabolic Tree with Many Branche. Critical Reviews in Biochemistry and Molecular Biology: Vol. 25, No. 5, pp. 307-384.

682 citations

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TL;DR: The triterpenoids are a large group of natural products derived from C(30) precursors and each of these structures is classified and mechanisms for their formation are provided.

500 citations

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TL;DR: Prenylated indole alkaloids are hybrid natural products derived from prenyl diphosphates and tryptophan or its precursors and widely distributed in filamentous fungi, especially in the genera Penicillium and Aspergillus of ascomycota.

380 citations

Journal ArticleDOI
TL;DR: Evaluation of data reveals a correlation in most cases between the occurrence of flavonoid aglycones, the presence of secretory structures and the production of other lipophilic plant products.

319 citations