反应详情

温度

60 °C

To a solution of N-(benzo[d]thiazol-2-yl)-1,2,3,4-tetrahydroisoquinoline-8-carboxamide dihydrochloride (1B) (2 g, 5.23 mmol) and methyl 2-chloro-5-iodothiazole-4-carboxylate (8B) (1.66 g, 5.23 mmol) in DMA (10 mL) was added Cs2CO3 (8.52 g, 26.2 mmol). The reaction mixture was stirred at 60° C. overnight, cooled to rt, acidified with 5% HCl, extracted with DCM, washed with water, brine, dried over Na2SO4, and concentrated under reduced pressure. The crude material was purified by column chromatography on silica gel and eluted with 5% MeOH in DCM to provide 2.0 g (65%) of the desired product 2-(8-(benzo[d]thiazol-2-ylcarbamoyl)-3,4-dihydroisoquinolin-2(1H)-yl)-5-iodothiazole-4-carboxylate (8C): LC/MS (APCI): m/z 577.0 (M+H)

1. temperaturecooled to rt
2. extractionextracted with DCM
3. washwashed with water, brine
4. dry with materialdried over Na2SO4
5. concentrationconcentrated under reduced pressure
6. customThe crude material was purified by column chromatography on silica gel
7. washeluted with 5% MeOH in DCM