反应详情

A mixture comprising of 3,5-dichlorobenzyl 4-(((tert-butoxycarbonyl)amino)methyl)-2-methylpiperidine-1-carboxylate (step 3) (970 mg, 2.249 mmol) and trifluoroacetic acid (173 μl, 2.249 mmol) in DCM (7.5 ml) was left stirring at room temperature 18 hours. The resulting mixture was loaded on to a 10 g Isolute® SCX-2 cartridge and washed with MeOH. The product was eluted with 2M ammonia in MeOH and the product fractions were concentrated under reduced pressure to afford the title compound;

1. washwashed with MeOH
2. washThe product was eluted with 2M ammonia in MeOH
3. concentrationthe product fractions were concentrated under reduced pressure