acutumine/menispermum dauricum

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Biosynthetic Relationship between Acutumine and Dechloroacutumine in Menispermum dauricum Root Cultures.

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Prijava / prijava

The biosynthetic relationship between acutumine 1 and dechloroacutumine 2 was studied using (13)C-labeled tyrosine and (3)H-labeled 2 as tracers. (13)C-NMR spectra of (13)C-labeled 1 and 2 showed that the alkaloids, each composed of two molecules of tyrosine, are derived from the same biosynthetic

Acutudaurin from cultured roots of Menispermum dauricum.

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Prijava / prijava

A new alkaloid, acutudaurin, was isolated from cultured roots of Menispermum dauricum, a rich source of the chlorine-containing alkaloid acutumine and its dechlorinated analogue dechloroacutumine. The structure of acutudaurin was determined to be 2',3'-dihydro-5-hydroxy-4,6',7'-trimethoxy-

Chlorinated alkaloids in Menispermum dauricum DC: root culture.

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Prijava / prijava

Feeding experiments using (36)Cl showed that Menispermum dauricum root culture produces four alkaloids containing chlorine. They included the novel alkaloids dauricumine and dauricumidine as well as the known alkaloids acutumine and acutumidine. The structures of novel alkaloids were established by

Early Steps of Dauricine Biosynthesis in Cultured Roots of Menispermum dauricum.

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Prijava / prijava

Cultured roots of Menispermum dauricum, a rich source of the bisbenzylisoquinoline alkaloid dauricine (1), were fed with l-[U-(14)C] tyrosine, L-[3-(13)C] tyrosine, and [2-(13)C] tvramine independently, and the incorporation of possible early precursors into 1 was studied. The results demonstrated

[Chemical constituents from rhizome of Menispermum dauricum and their anti-hypoxic activities].

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Prijava / prijava

To study the chemical constituents from the rhizome of Menispermum dauricum,fifteen compounds,N-methylcorydaldine( 1),thalifoline( 2),stepholidine( 3),acutumine( 4),daurisoline( 5),acutumidine( 6),dauricicoline( 7),bianfugecine( 8),6-O-demethylmenisporphine( 9),bianfugedine( 10),dauricoside(

Alkaloids from Menispermum dauricum.

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Prijava / prijava

The alkaloids, dechloroacutumidine and 1-epidechloroacutumine, together with three known alkaloids, acutumidine, acutumine, and dechloroacutumine, were isolated from the rhizomes of Menispermum dauricum and their structures established by spectral and chemical methods. The cytotoxicity of each

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