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- Title
Chemical Constituents from Cynoglossum gansuense.
- Authors
Yuan-Peng Jin; Xiao-Ning Wei; Yan-Ping Shi
- Abstract
Two new alkaloids, i.e., (2,3-dihydro-1-oxo-1H-pyrrolo[1,2-a]pyrrol-7-yl)methyl (2S*,3S*)-3-[(β-D-glucopyranosyl)oxy]-2-hydroxy-2-(1-methylethyl)butanoate (1) and 1,2-dihydro-8-methoxy-2-oxoquinoline-4-carboxylic acid (2), were isolated from the alcoholic extract of the whole plant of Cynoglossum gansuense, together with twelve known compounds Their structures were characterized by means of spectroscopic methods, especially by 1H-, 13C-, and 2D-NMR, as well as by HR-MS experiments and comparison with literature data.
- Subjects
ALKALOIDS; ORGANONITROGEN compounds; PYRROLES; ORGANIC acids
- Publication
Helvetica Chimica Acta, 2007, Vol 90, Issue 4, p776
- ISSN
0018-019X
- Publication type
Article
- DOI
10.1002/hlca.200790079