|
Figure 1
Synthesis of 4-hydroxy-5,4′-dimethyl-2′-(toluene-4-sulfonylamino)biphenyl-2,3-dicarboxylic acid dimethyl ester (1). |
|
Figure 1
Synthesis of 4-hydroxy-5,4′-dimethyl-2′-(toluene-4-sulfonylamino)biphenyl-2,3-dicarboxylic acid dimethyl ester (1). |