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A new C20 gibberellin in immature seeds of lupinus luteus

✍ Scribed by Koichi Koshimizu; Hiroshi Fukui; Toshiatsu Kusaki; Tetsuo Mitsui; Yukiyoshi Ogawa

Publisher: Elsevier Science
Year: 1966
Tongue: French
Weight: 173 KB
Volume: 7
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)75676-0

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✦ Synopsis

Extracts of immature seeds of Lupinus found to possess biological activities luteus have been similar to the gibberellins (l-4). It was suggested from the chromatographic behavior and the characteristics of infrared spectra that the active principles were different from Cl9 gibberellins (5). We wish to report the isolation of a new gibberellin, "Lupinus gibberellin-I", from the seeds, and to propose the structure shown as I for the gibberellin. The method of isolation followed that of MacMillan et al. (6). The fraction eluted from the charcoal-celite column with water containing 59-62 96 acetone was rechromatographed on silica-celite. Elution with 50-55 % ethyl acetate in chloroform yielded 35 mg. of Lupinus gibberellin, (Ll), from 60 kg. of the seeds. Ll' (I), which formed needles from acetone, m.p. 240-242 O, gave elementary analysis

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