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引用
期刊论文
Synthesis of 7a-Aza-benzo[fg]naphthacen-7-one
Chinese Chemical Letters Vol. 15, No.3, pp 269-272, 2004,-0001,():
2, 3, 11, 12-Tetramethoxy-3b, 4, 5, 6-tetrahydro-8H-7a-aza-benzo [fg] naphthacen-7-one 7 was synthesized via N-acyliminium ion cyclization of 6-hydroxy-1-(2, 3, 6, 7-tetramethoxyphenanthren- 9-yl-methyl)-piperidin-2-one 6 catalyzed by BF3⋅OEt2. The stereostructure of the intermediate, 1-(2, 3, 6, 7-tetramethoxy-phenanthren-9-yl-methyl)-piperidine-2, 6-dione 5, was confirmed by X-ray crystallographic analysis. Compound 7 showed no cytotoxicity.
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