The stereostructures and molecular conformations of six novel diterpene lactones, gelomulides A-F, isolated from the leaves of Gelonium multiflorum were established on the basis of NMR, mass spectral and chemical evidence. © 1989.

S K TALAPATRA

G DAS

B TALAPATRA

University of Calcutta (informally known as Calcutta University or CU) is a collegiate public state university located in Kolkata, West Bengal, India.&nbsp;Within India it is recognized as a &quot;Five-Star University&quot; and accredited &quot;A&quot; Grade by National Assessment and Accreditation Council.

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It was established on 24 January 1857, and was one of the first institutions in Asia to be established as a multidisciplinary and Western-style university. Its alumni and faculty include several heads of state, heads of government, social reformers, prominent artists, only academy award winner and Dirac medal winner in India, many Fellows of the Royal Society and five Nobel laureates as of 2019 which is highest in South Asia.

University Of Calcutta

Stereostructures and molecular conformations of six diterpene lactones from gelonium multiflorum

Phytochemistry

The stereostructures and molecular conformations of four more diterpene lactones, gelomulides G-J, isolated as minor constituents from the leaves of Gelonium multiflorum were established on the basis of their 1H NMR, 13C NMR and mass spectral evidence. Additionally, a 2D NMR spectral study and the ORTEP diagram derived from the X-ray crystallographic analysis of gelomulide I confirmed its proposed stereostructure and absolute configuration.

Stereostructures and conformations of four diterpene lactones from Gelonium multiflorum

A new diosgenin derivative designated denfigenin has been isolated from the petrol extract of the whole plant Dendrobium fimbriatum, along with diosgenin and defuscin (n-triacontyl p-coumarate). Denfigenin was shown to be (25R)-22α-O-spirost-5-ene-3β,16α,17α-triol mainly based on 1H and 13C NMR spectral studies. Its molecular conformation has also been discussed. © 1992.

Denfigenin, a diosgenin derivative from Dendrobium fimbriatum

Bulletin des Sociétés Chimiques Belges

Crystal Structure Of Jolkinolide A From Euphorbia Huachangana (Kl & Gke)Boiss

Caudicifolin, a new diterpene from Euphorbia caudicifolia

Tetrahedron Letters

Two new diterpenoids, jolkinolides A and B, obtained from boiss. (Euphorbiaceae)

Tetrahedron

Terpenoids and related compounds—III

Stereostructures and molecular conformations of six diterpene lactones from Gelonium multiflorum

Journal	Phytochemistry
Publisher	-
ISSN	0031-9422