2′-Deoxy-2′-[
18
F]-labeled and 3′-deoxy-3′-[
18
F]-labeled purine nucleoside analogs such as [
18
F]-FAA and [
18
F]-FXA have been found to have desirable properties for use as imaging agents. The analogs are particularly useful for in vivo imaging of biological material including organ tissues (e.g., heart, liver, brain and kidneys) and tumors. Methods for the preparation of the [
18
F]-FAA and [
18
F]-FXA are also provided.
2′-Deoxy-2′-[
18
F]标记和 3′-脱氧-3′-[标记;
18
F]标记的
嘌呤核苷类似物,如[
18
F]-FAA和[
18
F]-FXA 等
嘌呤核苷类似物具有理想的成像特性。这些类似物特别适用于
生物材料的体内成像,包括器官组织(如心脏、肝脏、大脑和肾脏)和肿瘤。制备 [
18
F]-FAA和[
18
F]-FXA 的制备方法。