11C-labeling of 20(S)-protopanaxadiol, an aglycon of ginsenoside, based on the use of Pd(0)-mediated rapid C-[11C]methylation of boronic precursors. - Ooshima Y; Koyama H; Ogata A; Ikenuma H; Yamada T; Kojima H; Kato T; Kimura Y; Suzuki M (Bioorganic & medicinal chemistry letters, 2025)