Mass spectrometry-guided isolation of two new benzoquinoline alkaloids from Macleaya cordata
Natural Product Research(2016)
Abstract
Two new alkaloids, named 2,3-methylenedioxy-7,10-dimethyl-7,8,9,10-tetrahydro-benzoquinoline (1) and 2,3-methylenedioxy-7,10-dimethyl-8-carboxyl-benzoquinoline (2), were detected primarily from the fruits of Macleaya cordata by their different fragmentation pathways. And then isolation of the two compounds was performed by column chromatography and preparative HPLC under the guiding of mass spectrometry. Finally, their structures were determined by spectroscopic analysis.
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Key words
Macleaya cordata,benzoquinoline alkaloids,mass spectrometry-guided isolation,2,3-methylenedioxy-7,10- dimethyl-7,8,9,10-tetrahydrobenzoquinoline,2,3-methylenedioxy-7,10-dimethyl-8-carboxyl-benzoquinoline
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