Hydrochloric Acid → N-(2,3-dihydro-1H-inden-5-yl)-2-((pyridin-3-yloxy)methyl)piperazine-1-carboxamide dihydrochloride

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Reaction Steps

4 M HCl in 1,4-dioxane (6 mL, 24 mmol) was added to a solution of tert-butyl 4-(2,3-dihydro-1H-inden-5-ylcarbamoyl)-3-((pyridin-3-yloxy)methyl)piperazine-1-carboxylate TFA salt (62.6 mg, 0.110 mmol) in MeOH (1 mL). After 1 h, the reaction mixture was concentrated under reduced pressure and purified by HPLC (5 to 50% MeCN/0.1% TFA in H2O/0.1% TFA gradient). The fractions containing the desired product were concentrated under reduced pressure. The material was dissolved in MeOH (1 mL) and treated with 4 M HCl in 1,4-dioxane (6 mL). The mixture was concentrated under reduced pressure to give 30.7 mg (65%) of the title compound. LC-MS: RT=4.79 min, [M+H]+=353.2.

Provenance & Evidence