HMBC spectroscopy optimized for small couplings was employed to determine the four-bond and twobond proton carbon correlations on the aromatic rings of ellagic acid derivatives. Complete 13 C NMR assignments of 3 0 -O-methyl-3,4-methylenedioxyellagic acid 4 0 -O-Λ-D-glucopyranoside (1), 3,3 0 -di-O-
Synthesis of New Ellagic Acid Derivatives.
β Scribed by P. D. Jadhav; K. S. Laddha
- Publisher
- John Wiley and Sons
- Year
- 2006
- Weight
- 18 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0931-7597
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β¦ Synopsis
Abstract
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## Abstract In this paper we report the first synthesis of novel polysialic acid derivatives which is initiated by treatment of polysialic acid with EDCβHCl to yield the interβresidual Ξ΄βlactone. Subsequent reaction with amines or hydrazine gives the corresponding polysialic acid amides and hydrazi
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a βFull Textβ option. The original article is trackable v