反应详情

4 M HCl in 1,4-dioxane (6 mL, 24 mmol) was added to a solution of tert-butyl 4-(4′-methoxybiphenyl-4-ylcarbamoyl)-3-((pyridin-3-yloxy)methyl)piperazine-1-carboxylate (114.9 mg, 0.182 mmol) in MeOH (1 mL). After 2 h, the reaction mixture was concentrated under reduced pressure, and the material was purified by HPLC (5 to 50% MeCN/0.1% TFA in H2O/0.1% TFA gradient). The desired fractions were brought to pH 12 with 1 N NaOH in H2O and were extracted with EtOAc (3×). The combined organics were dried over Na2SO4, filtered, and concentrated under reduced pressure. This gave 28.6 mg (38%) of the desired product as a white solid. LC-MS: RT=4.97 min, [M+H]+=419.2.

1. concentrationthe reaction mixture was concentrated under reduced pressure
2. customthe material was purified by HPLC (5 to 50% MeCN/0.1% TFA in H2O/0.1% TFA gradient)
3. extractionwere extracted with EtOAc (3×)
4. dry with materialThe combined organics were dried over Na2SO4
5. filtrationfiltered
6. concentrationconcentrated under reduced pressure