Rapid radiosynthesis of [11C] and [14C]azelaic, suberic, and sebacic acids for in vivo mechanistic studies of systemic acquired resistance in plants
作者:Marcel Best、Andrew N. Gifford、Sung Won Kim、Ben Babst、Markus Piel、Frank Rösch、Joanna S. Fowler
DOI:10.1002/jlcr.1951
日期:2012.1
acid was 40% relative to trapped [sup 11}C]cyanide, and specific activity was 15 GBq/micro}mol. Yields for [sup 11}C]suberic and sebacic acids were similar. The sup 14}C-labeled version of azelaic acid was prepared from potassium [sup 14}C]cyanide in 45% overall radiochemical yield. Radiolabeling procedures were verified using sup 13}C-labeling coupled with sup 13}C-NMR and liquid chromatography-mass
最近的一份报告称,脂肪族二羧酸、壬二酸(1,9-壬二酸)而非相关酸、辛二酸(1,8-辛二酸)或癸二酸(1,10-癸二酸)会诱导系统性获得性抗性入侵植物中的病原体刺激了用 sup 11}C 和 sup 14}C 标记这些二羧酸的快速方法的发展,以用于整个植物的体内机制研究。sup 11}C-标记通过[sup 11}C]氰化铵与相应的溴腈前体反应,然后用氢氧化钠水溶液水解来进行。总合成时间为60分钟。相对于捕获的 [sup 11}C] 氰化物,[sup 11}C] 壬二酸的中值衰减校正放射化学产率为 40%,比活度为 15 GBq/micro}mol。[sup 11}C] 辛二酸和癸二酸的产量相似。sup 14}C 标记的壬二酸是由 [sup 14}C] 氰化钾以 45% 的总放射化学产率制备的。使用sup 13}C-标记结合sup 13}C-NMR和液相色谱-质谱分析验证放射性标记程序。sup