Chemoenzymatic Syntheses of Fluorine-18-Labeled Disaccharides from [<sup>18</sup>F] FDG Yield Potent Sensors of Living Bacteria <i>In Vivo</i>
作者:Alexandre M. Sorlin、Marina López-Álvarez、Sarah J. Rabbitt、Aryn A. Alanizi、Rebecca Shuere、Kondapa Naidu Bobba、Joseph Blecha、Sasank Sakhamuri、Michael J. Evans、Kenneth W. Bayles、Robert R. Flavell、Oren S. Rosenberg、Renuka Sriram、Tom Desmet、Bernd Nidetzky、Joanne Engel、Michael A. Ohliger、James S. Fraser、David M. Wilson
DOI:10.1021/jacs.3c03338
日期:2023.8.16
([18F]FSK) were obtained. This method was further extended with the use of trehalose (α,α-1,1), laminaribiose (β-1,3), and cellobiose (β-1,4) phosphorylases to synthesize 2-deoxy-2-[18F]fluoro-trehalose ([18F]FDT), 2-deoxy-2-[18F]fluoro-laminaribiose ([18F]FDL), and 2-deoxy-2-[18F]fluoro-cellobiose ([18F]FDC). We subsequently tested [18F]FDM and [18F]FSK in vitro, showing accumulation by several clinically
化学酶技术已广泛应用于药物开发,当常规合成方法失败时最有效。结构复杂的聚糖的区域选择性和立体选择性构建是这种方法的优雅应用,很少应用于正电子发射断层扫描(PET)示踪剂。我们寻求一种将临床成像中最常用的示踪剂 2-脱氧-[ 18 F]-氟- d-葡萄糖 ([ 18 F]FDG) 二聚化的方法,以形成 [ 18 F] 标记的二糖,用于检测微生物中的微生物。体内基于细菌特异性聚糖的掺入。当[ 18 F]FDG在麦芽糖磷酸化酶存在下与β- d-葡萄糖-1-磷酸反应时,α-1,4-和α-1,3-连接产物2-脱氧-[ 18 F]-获得氟代麦芽糖([ 18 F]FDM)和2-脱氧-2-[ 18 F]-氟代清酒二糖([ 18 F]FSK)。使用海藻糖 (α,α-1,1)、昆布二糖 (β-1,3) 和纤维二糖 (β-1,4) 磷酸化酶进一步扩展了该方法以合成 2-deoxy-2-[ 18 F ]氟-海藻糖