dimethylammonium 1-(4-N-p-sulfonato-3-thiosemicarbazone)-2-(4-N-methyl-3-thiosemicarbazone)pyruvaldehyde 在
Dowex column in Na
+ form 作用下,
以
水 为溶剂,
以38%的产率得到sodium 1-(4-N-p-sulfonato-3-thiosemicarbazone)-2-(4-N-methyl-3-thiosemicarbazone)pyruvaldehyde