防已科植物アルカロイド研究 (第199報)
オオツヅラフジSinomenium acutum REND. et WILS.のアルカロイド(補遺3) Isosinomenineについて
1963 年 83 巻 4 号 p. 418-419
詳細
1963 年 83 巻 4 号 p. 418-419
Further detailed examinations were made on isosinomenine, m. p. 210-212°, reported as one of the alkaloids contained in Sinomenium acutum REND. et WILS. Its molecular formula was found to be C20H25O4N and it had an ethoxyl group. This substance must have a structure of 3-methoxy-4-hydroxy-6-oxo-7-ethoxy-N-methyl-Δ5-morphinan (I) or 3-methoxy-4-hydroxy-6-ethoxy-7-oxo-N-methyl-Δ5-morphinan (II), and the name isosinomenine should be abolished.
