Isolation and Structure Elucidation of a Novel Alkaloid, Incartine, a Supposed Biosynthetic Intermediate, from Flowers of Lycoris incarnata

Masaru KIHARA; Lai XU; Keiji KONISHI; Kiyoshi KIDA; Yoshimitsu NAGAO; Shigeru KOBAYASHI; Tetsuro SHINGU

doi:10.1248/cpb.42.289

Masaru KIHARA, Lai XU, Keiji KONISHI, Kiyoshi KIDA, Yoshimitsu NAGAO, Shigeru KOBAYASHI, Tetsuro SHINGU

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Keywords: incartine, Amaryllidaceae alkaloid, biosynthetic intermediate, Lycoris incarnata, flower, phospholipid

JOURNAL FREE ACCESS

1994 Volume 42 Issue 2 Pages 289-292

DOI https://doi.org/10.1248/cpb.42.289

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Abstract

A novel alkaloid incartine (1), a supposed biosynthetic intermediate from galanthine (2) to narcissidine (3), was isolated from flowers of Lycoris incarnata (Amaryllidaceae) together with the known alkaloids galanthine (2), ungiminorine (4), ungiminorine N-oxide (5), galanthamide (6), galanthamine N-oxide (7), lycoramine (8), sanguinine (9), lycorine (10), and O-demethyllycoramine (11). 1-Palmitoyl-2-linoleoylphosphatidylethanolamine (12) and 1-palmitoyl-2-linoleoyphosphatidylmethanol sodium salt (13) were also identified in the flower.

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