(+/-)-3-fluoro-5-(7-methyl-2-(pyridin-2-yl)-6,7-dihydrooxazolo[5,4-c]pyridin-5(4H)-yl)benzonitrile 、
(+/-)-benzyl 3-hydroxy-5-methyl-4-picolinamidopiperidine-1-carboxylate 在
(+/-)-3-fluoro-5-(7-methyl-2-(pyridin-2-yl)-6,7-dihydrooxazolo[4,5-c]pyridin-5(4H)-yl)benzonitrile 作用下,
以Preparative TLC afforded 3-fluoro-5-(7-methyl-2-(pyridin-2-yl)-6,7-dihydrooxazolo-[4,5-c]pyridin-5(4H)-yl)benzonitrile (15 mg, 19%) as a yellow solid的产率得到(+/-)-3-fluoro-5-(7-methyl-2-(pyridin-2-yl)-6,7-dihydrooxazolo[4,5-c]pyridin-5(4H)-yl)benzonitrile