Studies on Oxytetracycline and Related Compounds. XVII. Synthesis of 1, 3, 11-Trimethoxynaphthacenequinone
作者:Zen-ichi Horii、Takefumi Momose、Masaori Naruse、Yasumitsu Tamura
DOI:10.1248/cpb.10.1013
日期:——
1, 3, 11-Trimethoxynaphthacenequinone (V) and 1, 3-dimethoxyanthraquinone (XIII) were prepared as shown in Charts 1 and 2. Reduction with sodium hydrogensulfite in alkaline medium converted the quinones, (V), (XIII) and 6-methoxynaphthacenequinone (XV), to 1, 3, 11-trimethoxy-5 (12H)-naphthacenone (VI), 2, 4-dimethoxyanthrone (Xff) and 11-methoxy-5 (12H)-naphthacenone (XVI), respectively.
如图 1 和图 2 所示,制备了 1,3,11-三甲氧基萘醌(V)和 1,3-二甲氧基蒽醌(XIII)。在碱性介质中用亚硫酸氢钠还原,将醌(V)、(XIII)和 6-甲氧基萘醌(XV)分别转化为 1,3,11-三甲氧基-5(12H)-萘酮(VI)、2,4-二甲氧基蒽酮(Xff)和 11-甲氧基-5(12H)-萘酮(XVI)。