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Studies on the Alkaloids of Papaveraceous Plants. XXIII. Alkaloids of Corydalis nokoensis HAYATA

Chiaki Tani, Kiyoshi Tagahara, SETSUKO ARATANI

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Abstract

A new alkaloid, named nokoensine, was isolated from Corydalis nokoensis HAYATA from Taiwan, together with protopine, dl-tetrahydropalmatine, dihydrosanguinarine, capaurine, corybulbine, sanguinarine, palmatine, captisine, and dehydrocorybulbine. The structure of nokoensine was determined as capaurine N-oxide from various spectral data and by the synthesis.

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A new alkaloid, named nokoensine, was isolated from Corydalis nokoensis HAYATA from Taiwan, together with protopine, dl-tetrahydropalmatine, dihydrosanguinarine, capaurine, corybulbine, sanguinarine, palmatine, captisine, and dehydrocorybulbine. The structure of nokoensine was determined as capaurine N-oxide from various spectral data and by the synthesis.

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Available abstract

A new alkaloid, named nokoensine, was isolated from Corydalis nokoensis HAYATA from Taiwan, together with protopine, dl-tetrahydropalmatine, dihydrosanguinarine, capaurine, corybulbine, sanguinarine, palmatine, captisine, and dehydrocorybulbine. The structure of nokoensine was determined as capaurine N-oxide from various spectral data and by the synthesis.

Key concepts: Protopine, Sanguinarine, Corydalis, Palmatine, Tetrahydropalmatine, Papaveraceae, Alkaloid, Coptisine

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