The present invention relates to hydroxymethylfurazancarboxylic acid derivatives of the general formula I ##STR1## in which one of the radicals R.sup.1 and R.sup.2 represents hydroxymethyl and the other represents ##STR2## where X represents NR.sup.3 R.sup.4, OH or OR.sup.7, and R.sup.3, R.sup.4 and R.sup.7 are defined as indicated in claim 1, to processes for their preparation and to their use.
本发明涉及一般式I的羟甲基
呋喃甲酸衍
生物,其中R1和R2中的一个代表羟甲基,另一个代表##STR2## 其中X代表NR3R4,OH或OR7,而R3、R4和R7如权利要求书中所示,以及它们的制备过程和使用。