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.

B TALAPATRA

G DAS

A K DAS

K BISWAS

S K 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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The University of Calcutta has secured the Fifth position among the Universities of India in the prestigious &quot;Indian University Ranking 2019&quot; list, released by the NIRF of the Ministry of Human Resource Development, Government of India.

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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 conformations of four diterpene lactones from Gelonium multiflorum

Phytochemistry

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.

Stereostructures and molecular conformations of six diterpene lactones from Gelonium multiflorum

Tetrahedron Letters

A new pentacyclic triterpene alcohol from evodia fraxinifolia hook f.

ChemInform

ChemInform Abstract: Terpenoids and Related Compounds. Part 32. Calliphyllin, a New Diterpene from the Leaves of Callicarpa macrophylla.

ChemInform Abstract: Terpenoids and Related Compounds. Part 34. Some Interesting Reactions of Gelomulides, the Natural Diterpene Lactones

Journal	Data powered by TypesetPhytochemistry
Publisher	Data powered by TypesetPERGAMON-ELSEVIER SCIENCE LTD
ISSN	0031-9422