Abstract
Two new isoquinoline alkaloids, 2,10-dimethoxy-3,11-dihydroxy-5,6-dihydroprotoberberine (1) and 1,9-dihydroxy-2,11 -dimethoxy-4,5-dihydro-7-oxoaporphine (2), together with thirteen known alkaloids, were isolated from the ethanolic extracts of the stem and leaves of Miliusa cuneata (Graib). Their structures were elucidated predominantly by spectral evidence.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Annonaceae / chemistry*
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Aporphines / chemistry
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Aporphines / isolation & purification*
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Berberine Alkaloids / chemistry
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Berberine Alkaloids / isolation & purification*
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Magnetic Resonance Spectroscopy
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Plant Extracts / chemistry
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Plant Leaves / chemistry
Substances
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1,9-dihydroxy-2,11-dimethoxy-4,5-dihydro-7-oxoaporphine
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2,10-dimethoxy-3,11-dihydroxy-5,6-dihydroprotoberberine
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Aporphines
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Berberine Alkaloids
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Plant Extracts