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Chemical Constituents from Cynoglossum gansuense

✍ Scribed by Yuan-Peng Jin; Xiao-Ning Wei; Yan-Ping Shi

Publisher
John Wiley and Sons
Year
2007
Tongue
German
Weight
82 KB
Volume
90
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Two new alkaloids, i.e., (2,3‐dihydro‐1‐oxo‐1__H__‐pyrrolo[1,2‐a]pyrrol‐7‐yl)methyl (2__S__*,3__S__*)‐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 ^1^H‐, ^13^C‐, and 2D‐NMR, as well as by HR‐MS experiments and comparison with literature data.

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