溶剂黄146 、
5-formyl-2,2-dimethyl-4H-[1,3]dioxino[4,5-c]pyridine-8-carboxylic acid methyl ester 、
4-氟苯胺 、
氰基硼氢化钠 在
甲醇 、
二氯甲烷 、
Sodium sulfate-III 、 crude product 、 silica gel 、
methyl 5-((4-fluorophenylamino)methyl)-2,2-dimethyl-4H-[1,3]dioxino[4,5-c]pyridine-8-carboxylate 作用下,
以
甲醇 为溶剂,
反应 3.25h,
以to give 0.290 g of methyl 5-((4-fluorophenylamino)methyl)-2,2-dimethyl-4H-[1,3]dioxino[4,5-c]pyridine-8-carboxylate (compound 21a) (96%) as a white solid MS-ESI m/z 347 [MI-1]+的产率得到methyl 5-((4-fluorophenylamino)methyl)-2,2-dimethyl-4H-[1,3]dioxino[4,5-c]pyridine-8-carboxylate