3,8-二氢-5,10-二羟基-2,7-双(羟基甲基)-3,8-二甲基嘧啶并[4,5-g]喹唑啉-4,9-二酮

甲烷磺酰氯

3,6-dicyano-1,4-dimethoxy-2-nitrobenzene

2,5-Dimethoxy-1,4-benzoldicarbonitril

1,4-dimethoxy-2-nitrobenzene-3,6-dicarboxylic acid