反应详情

3-(1,1-Dioxidotetrahydro-2H-thiopyran-4-yl)-5-(3-formylphenyl)-1H-indole-7-carboxamide (0.160 g, 0.404 mmol) was taken up in MeOH (1.802 mL)/DMSO (1.802 mL). Methyl amine HCl (0.136 g, 2.018 mmol) was added followed by acetic acid (0.462 mL, 8.07 mmol). The reaction mixture was allowed to stir at room temperature for 1 hour. Sodium cyanoborohydride (0.051 g, 0.807 mmol) was added and the reaction mixture was allowed to stir for 45 minutes and LCMS then shows conversion to desired product. The reaction mixture was purified through a 500 mg SCX cartridge eluting with MeOH followed by ammonia in methanol. The fractions are concentrated under a stream of nitrogen. The residue was dissolved in DMSO (˜3 mL) and purified via RP-HPLC using an XBridge Prep C18 column with water/acetonitrile (0.1% NH4OH buffer). Obtained 0.023 g (13.85%) of the title compound.

1. stirringto stir for 45 minutes