Enol form δ-lactone of diketogulonic acid (2,3,6-trihydroxy-4-oxo-2-hexen-5-olide; R-345), which is the enediol type oxidation product of ascorbic acid, and/or its sodium salt, potassium salt or calcium salt has activities of markedly reducing the toxicity of Adriamycin, reducing radiation injury, reducing liver damage induced by an organic halogen compound, and further accelerating recovery from a high blood sugar level in Alloxan-induced diabetes, using vitamin E in combination.
二酮
古洛糖酸的烯醇形式 δ-内酯(2,3,6-三羟基-4-氧代-
2-己烯-
5-内酯;R-345)是
抗坏血酸的烯二醇型氧化产物,和/或其钠盐、
钾盐或
钙盐具有显著降低
阿霉素的毒性、减少辐射损伤、减少有机卤素化合物诱发的肝损伤以及进一步加快阿
脲诱发糖尿病患者从高血糖中恢复的活性。