P-31 花芽誘導関連物質KODAとFNsの代謝・構造活性相関研究(ポスター発表の部)

概要

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α-Ketol of octadecadienoic acid (KODA, Figure 1) has been suggested to play a role in the photoperiod-regulated flowering in Pharbitis nil. The level of KODA in cotyledons is temporarily controlled during short-day conditions. In our previous study, we have investigated this issue by studying the metabolism of exogenously-applied KODA in P nil seedlings by the spectroscopic methods and identified 4 major metabolites (D18, D16, D14, K16) as described in Figure 2. However, the stereochemistry of reduction of KODA into D18 has not been examined. In the present study, we carried out elucidating the absolute configuration of D18 by the measuring the long-range coupling constant using J-resolved 2D-NMR experiments. Furthermore, to obtain insight in the structural requirements of FN1 for flower inducing activity, we synthesized the analogues of FN1 and evaluated their activity.
天然有機化合物討論会の論文
2007-08-24