Ontology highlight
ABSTRACT:
SUBMITTER: Guo Q
PROVIDER: S-EPMC4629276 | biostudies-literature | 2015 Jul
REPOSITORIES: biostudies-literature
Acta pharmaceutica Sinica. B 20150407 4
Seven new 4-hydroxybenzyl-substituted amino acid derivatives (1-7), together with 11 known compounds, were isolated from an aqueous extract of the rhizomes of Gastrodia elata Blume. Their structures were determined by spectroscopic and chemical methods. Compounds 1-3 are pyroglutamate derivatives containing 4-hydroxybenzyl units at the N atom and 4-7 are the first examples of natural products with the 4-hydroxybenzyl unit linked via a thioether bond to 2-hydroxy-3-mercaptopropanoic acid (4-6) an ...[more]