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宮坂 宗麿, 野村 正一. "100. フェナントレン誘導體の合成研究 (第五報) 3-Dialkylamino-4-oxy-7-methoxy-1, 2, 3, 4, -tetrahydrophenanthren の合成." Yakugaku zasshi 61.12 (1941) 502-506