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Two new phenolic glucosides and an ellagitannin from the leaves of Castanopsis sclerophylla
- Source :
- Phytochemistry Letters. 5(1):158-161
- Publication Year :
- 2012
- Publisher :
- Elsevier BV, 2012.
-
Abstract
- In the course of a chemotaxonomical study of Castanopsis species (Fagaceae), detailed investigation of the leaves of C. sclerophylla led to isolation of three new phenolic compounds together with 62 known compounds. The structures of the new compounds were elucidated as 2-O-galloyl-O-4,6-(S)-valoneoyl-d-glucose (1), 6-O-galloyl-1-O-vanilloyl-β-d-glucose (2), and 4″-O-galloylchestanin (3) by means of spectroscopic analyses and enzymatic hydrolysis with tannase. Comparison with other Castanopsis species indicated that C. sclerophylla characteristically accumulates chlorogenic acid and a dimeric ellagitannin, rugosin E. Triterpene hexahydroxydiphenoyl esters, which are major constituents of C. cuspidata var. sieboldii, C. hystrix, and C. fissa were not detected.<br />Phytochemistry Letters, 5(1), pp.158-161; 2012
- Subjects :
- chemistry.chemical_classification
biology
Phenolic glucoside
Ellagitannin
Plant Science
Castanopsis
biology.organism_classification
Fagaceae
Biochemistry
Tannase
chemistry.chemical_compound
Chlorogenic acid
chemistry
Triterpene
Enzymatic hydrolysis
Organic chemistry
Castanopsis sclerophylla
Agronomy and Crop Science
Biotechnology
Subjects
Details
- Language :
- English
- ISSN :
- 18743900
- Volume :
- 5
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Phytochemistry Letters
- Accession number :
- edsair.doi.dedup.....dd05126a943e6f3fb4885d5f23559630