Abstract:
:In this article, an ultra-performance liquid chromatography/quadrupole time-of-flight mass spectrometry method was developed to detect the chemical structures of proanthocyanidins (PAs) from seed coats of Schisandra chinensis. The cleavage pathways of the compounds were revealed. The structures of S. chinensis PAs, including two monomers, two B-type procyanidin dimers, three B-type procyanidin trimers, one mixed trimer and one B-type procyanidin tetramer, were confirmed. These nine compounds were detected in seed coats for the first time. The structures were identified by comparing their maximum absorption wavelengths, HPLC retention times and ESI-MS with those of authentic standards, or tentatively identified by MS/MS determination along with MetaboLynx(TM) software.
journal_name
Nat Prod Resjournal_title
Natural product researchauthors
Yan T,Hu GS,Wang AH,Hong Y,Jia JMdoi
10.1080/14786419.2014.950574subject
Has Abstractpub_date
2014-01-01 00:00:00pages
1834-42issue
21eissn
1478-6419issn
1478-6427journal_volume
28pub_type
杂志文章abstract::Novel derivatives of 4-oxo-3-methylcytisine with phenyl moiety bonded to starting molecule through various spacers were obtained from the 9-amino, -halo, -formyl and 11-halo precursors by reductive alkylation of amines, generation of amide, as well as thio- and carboxamide functions, cross-coupling reactions, aldehyde...
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