Reduction of methyl 5-nitro-2-furoate by xanthine oxidase: An evidence for hydroxylaminofuran formation.
作者:Hideyuki Yamada、Hidetoshi Yoshimura、Kiyoshi Tatsumi
DOI:10.1248/cpb.30.2647
日期:——
After methyl 5-nitro-2-furoate was incubated with milk xanthine oxidase, two reduction products were isolated from the incubation mixture. Metabolite 1 was positive to a pentacyanoammineferroate reagent and data obtained from mass spectrometry of its acetylated derivative indicated that the metabolite was the hydroxylaminofuran derivative (methyl 5-hydroxylamino-2-furoate). Metabolite 2 was identified as the aminofuran derivative (methyl 5-amino-2-furoate) by comparison with a synthetic sample.
5- 硝基-2-糠酸甲酯与牛奶黄嘌呤氧化酶孵育后,从孵育混合物中分离出两种还原产物。代谢物 1 对五氰基胺基铁酸盐试剂呈阳性反应,其乙酰化衍生物的质谱分析数据表明,代谢物为羟基氨基呋喃衍生物(5-羟基氨基-2-糠酸甲酯)。通过与合成样品进行比较,确定代谢物 2 为氨基呋喃衍生物(5-氨基-2-糠酸甲酯)。