Photocyclization of Enamides. XXXVI. Alkaloid Synthesis Using Furopyridone as a Synthon : Synthesis of Key Intermediates for the Synthesis of Eburnamine-Vincamine Alkaloids

Takeaki NAITO; Yoko HABU; Okioko MIYATA; Ichiya NINOMIYA; Hirofumi OHISHI

doi:10.1248/cpb.40.602

Photocyclization of Enamides. XXXVI. Alkaloid Synthesis Using Furopyridone as a Synthon : Synthesis of Key Intermediates for the Synthesis of Eburnamine-Vincamine Alkaloids

Takeaki NAITO, Yoko HABU, Okioko MIYATA, Ichiya NINOMIYA, Hirofumi OHISHI

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Keywords: alkaloid synthesis, eburnamine, eburnamonine, cuanzine, furopyridone, methylthio group, enamide, photocyclization

JOURNAL FREE ACCESS

1992 Volume 40 Issue 3 Pages 602-608

DOI https://doi.org/10.1248/cpb.40.602

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Abstract

The furopyridone 10 was shown to be a potential synthon for eburnamine-vincamine alkaloids, including cuanzine, by facile conversion to kye intermediates 15, 18, and 22 for the synthesis of natural alkaloids.

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