bulbocapnine/corydalis

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Isolation and chemistry of alkaloids from plants of the family Papaveraceae LXVII: Corydalis cava (L.) Sch. et K. (C. tuberosa DC).

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Prijava / prijava

From Corydalis cava (L.) Sch. et K. (C. tuberosa DC) (Papaveraceae: genus Corydalis Med.), a mixture of alkaloids (0.53%) was isolated. The main alkaloid was (+)-bulbocapnine, and the minor alkaloids were coptisine, (+)-domestine, adlumidiceine, (+)-predicentrine, protopine, (-)-capnoidine,

Rapid TLC/GC-MS identification of acetylcholinesterase inhibitors in alkaloid extracts.

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Prijava / prijava

Alkaloid extracts from 12 plant species of the families Amaryllidaceae, Fumariacae and Papaveraceae were studied with respect to their acetylcholinesterase inhibitory activity and alkaloid patterns. Fifty-three alkaloids were identified by GC-MS, including known acetylcholinesterase (AChE)

Alkaloids from Corydalis bulbosa.

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A new 4,5-dioxoaporphine, named corydione, was isolated from the whole herb of Corydalis bulbosa (L.) Dc (Papaveraceae), together with dehydronantenine, (-)-stylopine, (+)-bicuculline, (-)-adlumidine, (+)-nantenine, (+)-bulbocapnine, protopine (-)-domesticine, (+)-corydine, predicentrine,

Minor Alkaloids of Corydalis bulbosa, Structure of Bulbodione.

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As a result of the reinvestigation of the alkaloid content of CORYDALIS BULBOSA (L.) DC. (Papaveraceae), growing in Bulgaria, a new 8,11-dioxoaporphine alkaloid, named bulbodione, together with dihydrosanguinarine, dehydroglaucine, (+/-)-sinactine, glaucinone and bicucullinine were isolated. These

Acetylcholinesterase and butyrylcholinesterase inhibitory compounds from Corydalis cava (Fumariaceae).

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Tubers of Corydalis cava were extracted with ethanol and fractionated using n-hexane, chloroform and ethanol. Repeated column chromatography, preparative TLC and crystallization led to the isolation of fifteen isoquinoline alkaloids. The chemical structures of the isolated compounds were determined

Acetylcholinesterase and butyrylcholinesterase inhibitory compounds from Corydalis cava Schweigg. & Kort.

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In the course of screening plants used in Danish folk medicine as memory enhancers, a crude methanolic extract of tubers from Corydalis cava showed significant acetylcholinesterase inhibitory activity in a dose-dependent manner. Activity guided fractionation of the methanolic extract resulted in the

Alkaloids from Corydalis marschalliana.

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Prijava / prijava

The known alkaloids (+/-)-stylopine, (+/-)-sinactine, protopine, (+)-bulbocapnine, (-)-domesticine, (+)-corydine and (+)-isoboldine were found in the mixture of alkaloids from Corydalis marschalliana (Papaveraceae), growing in Bulgaria. The alkaloids dehydronantenine, (+)-nantenine and oxonantenine

Alkaloids of Corydalis slivenensis.

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Prijava / prijava

The known alkaloids (-)-stylopine, (-)-canadine, (+/-)-sinactine, (+)-nantenine, (+)-bulbocapnine, protopine, (-)-isocorydine, (-)-domesticine, alpha-allocryptopine and berberine were found in a mixture of alkaloids from Corydalis slivenensis (Papaveraceae), growing in Bulgaria. Dehydronantenine,

Chemical Study on the Alkaloids of Corydalis hsuchowensis.

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Prijava / prijava

Ten alkaloids were isolated from the bulb of CORYDALIS HSUCHOWENSIS W. Y. Lian nov. ined. Among them nine alkaloids are known, identified as (-)-stylopine ( 1), cheilanthifoline ( 2), (+)-adlumidine ( 3), (+)-bicuculline ( 4), sibiricine ( 5), humosine A ( 6), (+)-bulbocapnine ( 7), (-)-scoulerine (

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