Streamlined Radiosynthesis of [ 18 F]Fluproxadine (AF78): An Unprotected Guanidine Precursor Enables Efficient One-Step, Automation-Ready Labeling for Clinical Use. - Chen, Xinyu; Ohta, Kaito; Kimura, Hiroyuki; Yagi, Yusuke; Sasaki, Takanori; Nose, Naoko; Akehi, Masaru; Yamane, Tomohiko; Werner, Rudolf A.; Higuchi, Takahiro (Pharmaceutics, 2026)