6-formyl-4,7,9-trihydroxy-8-methyl-1-phenazinecarboxylic acid, methyl ester 以
水 、
N,N-二甲基乙二胺 、
乙腈 为溶剂,
以986 mg (2.31 mmol, 75.7%)的产率得到N-[2-(dimethylamino)ethyl]-6-[[[2(dimethylamino)ethyl]imino]methyl]-4,7,9-trihydroxy-8-methyl-1-phenazinecarboxamide