反应详情

A solution of tert-butyl 5-(2-(4-methylpiperazin-1-yl)-4-(trifluoromethyl)phenyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate (1.680 g, 3.53 mmol) in 4 mL THF was treated with HCl 4N in dioxane (8.83 ml, 35.3 mmol) and was heated to reflux with a heat gun. The reaction mixture was allowed to stir for an additional hour then the reaction mixture was concentrated. Purification of the resulting residue by reverse phase column chromatography [RediSep Gold C18 150 g, 5-100% (0.1% NH4OH in MeOH)/(0.1% NH4OH in water)] gave 5-(2-(4-methylpiperazin-1-yl)-4-(trifluoromethyl)phenyl)-1,2,3,4-tetrahydroisoquinoline (1.031 g, 2.75 mmol,) as a light yellow solid.

1. temperaturewas heated
2. temperatureto reflux with a heat gun
3. concentrationthe reaction mixture was concentrated
4. customPurification of the resulting residue by reverse phase column chromatography [RediSep Gold C18 150 g, 5-100% (0.1% NH4OH in MeOH)/(0.1% NH4OH in water)]