防己科植物アルカロイド研究 (第146報)
ミヤコジマツヅラフジCyclea insularis (MAKINO) DIELSのアルカロイド その10 Cyclanolineの構造 (1)
1957 年 77 巻 1 号 p. 73-78
詳細
1957 年 77 巻 1 号 p. 73-78
Structure of the new quaternary base from Cyclea insularis (MAKINO) DIELS, cyclanoline, was examined and it was found that O, O-dimethylcyclanoline iodide was identical with l-tetrahydropalmatine α-methiodide. The methine base obtained by the Hofmann degradation of cyclanoline was proved to be none other than rac-7, 8-dimethoxy-3-(4′, 5′-dimethoxy-2′-vinyl-phenyl)-2-methyl-1, 2, 3, 4-tetrahydroisoquinoline (IV).
