Feng Xuan, Al Maharik Nawaf, Bartholomé Axel, Janso Jeffrey E, Reilly Usa, O'Hagan David
University of St Andrews, School of Chemistry and Centre for Biomolecular Sciences, North Haugh, St Andrews, Fife KY16 9ST, UK.
Org Biomol Chem. 2017 Oct 4;15(38):8006-8008. doi: 10.1039/c7ob02163a.
Deuterium incorporations from [H]-(1R,2R) and [H]-(1S,2R) glycerols into the fluorine containing antibiotic nucleocidin, in Streptomyces calvus indicate that one deuterium atom is incorporated at the C-5' site of nucleocidin from each of these isotopomers of glycerol. Two deuteriums become incorporated at C-5' of nucleocidin after a feeding experiment with [H]-glycerol. These observations indicate that there is no obligate oxidation of the pro-R hydroxymethyl group of glycerol as it progresses through the pentose phosphate pathway and becomes incorporated into the fluorinated antibiotic.
在黄色链霉菌中,[H]-(1R,2R)甘油和[H]-(1S,2R)甘油中的氘掺入含氟抗生素杀稻瘟菌素的过程表明,来自这些甘油同位素异构体的一个氘原子掺入到杀稻瘟菌素的C-5'位点。在用[H] -甘油进行饲喂实验后,两个氘掺入到杀稻瘟菌素的C-5'位点。这些观察结果表明,甘油的前-R羟甲基在通过磷酸戊糖途径并掺入到氟化抗生素的过程中,不存在专一性氧化。