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Your search keyword '"R.A. Stephani"' showing total 2 results
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2 results on '"R.A. Stephani"'

1. Structure of Hiptagin as 1,2,4,6-tetra-O-(3-nitropropanoyl)-β-D-Glucopyranoside, its Identity with Endecaphyllin X, and the Synthesis of its Methyl Ether

Author

R.A. Finnegan and R.A. Stephani

Subjects
Magnetic Resonance Spectroscopy, Plants, Medicinal, biology, Infrared Rays, Plant Extracts, Stereochemistry, Pharmaceutical Science, Ether, Nuclear magnetic resonance spectroscopy, biology.organism_classification, chemistry.chemical_compound, chemistry, Spectrophotometry, Tetra, Glycosides, Ethers
Published
1968
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2. Occurrence of Mangiferin in Hiptage madablota Geartn

Author

R.A. Finnegan, S.N. Ganguly, R.A. Stephani, A.K. Bhattacharya, and G. Ganguli

Subjects
Biological test, Plants, Medicinal, Chromatography, biology, medicine.diagnostic_test, Plant Extracts, Pharmaceutical Science, Ether, biology.organism_classification, chemistry.chemical_compound, Xanthenes, chemistry, Spectrophotometry, medicine, Organic chemistry, Mangiferin, Hiptage
Abstract

A bright yellow, crystalline compound, m.p. 271–274°, isolated from the root-bark of Hiptage madablota Geartn. has been identified as mangiferin, 1,3,6,7-tetrahydroxy-2-C- β -D-glucosylxanthone, by direct comparison of its properties and those of its derived 3,6,7-trimethyl ether with those of authentic samples. Mangiferin was assayed in three biological test systems and the results are given.

Published
1968
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