Acetic Anhydride → 1-(1-Acetylpiperidin-4-yl) 4-tert-butyl 2-((pyridin-3-yloxy)methyl)piperazine-1,4-dicarboxylate

Participants

Reaction Steps

Acetic anhydride (0.0207 mL, 0.219 mmol) was added to a solution of 4-tert-butyl 1-piperidin-4-yl 2-((pyridin-3-yloxy)methyl)piperazine-1,4-dicarboxylate (83.7 mg, 0.199 mmol) in THF (4 mL). After 16 h, the reaction mixture was concentrated under reduced pressure and purified by HPLC (10 to 90% MeCN/0.1% TFA in H2O/0.1% TFA gradient). This gave 112.5 mg (98%) of the TFA salt of the desired product as a white solid. LC-MS: RT=6.40 min, [M+H]+=463.2.

Provenance & Evidence