these therapies exists to date. Towards development of a CSF-1R PET tracer, a set of six compounds based on recently reported CSF-1R inhibitor 5-(1-methyl-1H-pyrazol-4-yl)-N-(2-methyl-5-(3-(trifluoromethyl)benzamido)phenyl)nicotinamide (Compound 5) was designed, synthesized and evaluated in vitro for potency and selectivity. The highest affinity for CSF-1R was found for compound 5 (IC50: 2.7 nM). Subsequent
肿瘤微环境中肿瘤相关巨噬细胞和小胶质细胞的药理学靶向是治疗多形性胶质母细胞瘤的新治疗策略。因此,集落刺激因子-1 受体 (CSF-1R) 已被确定为可药物靶点。然而,迄今为止,还没有针对这些疗法的经过验证的伴随诊断标志物。开发 CSF-1R PET 示踪剂,一组六种化合物,基于最近报道的 CSF-1R
抑制剂 5-(1-methyl-1 H -pyrazol-4-yl)- N -(2-methyl-5-( 3-(三
氟甲基)苯甲酰胺基)苯基)烟酰胺(化合物5)被设计、合成并在体外评估其效力和选择性。发现化合物5对 CSF-1R 的亲和力最高(IC 50 : 2.7 nM)。在轰击结束后的 40 分钟内,通过
一氧化碳氨基羰基化以 2.0 ± 0.2% 的产率(衰减校正到合成开始)实现了 [ 11 C] 5 的后续放射合成。用[ 11 C] 5在大鼠脑切片上进行的体外放射自显影显示出高特异性结合