Two New Phenolic Constituents from the Stems of Euphorbia griffithii.
Nat Prod Bioprospect
; 9(6): 405-410, 2019 Dec.
Article
em En
| MEDLINE
| ID: mdl-31734865
ABSTRACT
Phytochemical studies on MeOH extract of stems of Euphorbia griffithii led to the isolation of one new hydrolyzable tannin dimer, corilagiffithiin (1) and one new galloyl-glucoside (2), alongside six known ones (3-8). Their structures and absolute configurations were determined by in depth spectroscopic analyses and comparison of their 1D NMR and MS data with literature reported values. Configurations of sugar moieties were determined by acidic hydrolysis and subsequent GC analysis of their corresponding trimethylsilylated L-cysteine adduct. At a concentration of 50 µM, compounds 1-3 showed no anti-inflammatory activities.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Nat Prod Bioprospect
Ano de publicação:
2019
Tipo de documento:
Article
País de publicação:
ALEMANHA
/
ALEMANIA
/
DE
/
DEUSTCHLAND
/
GERMANY