Hydrochloric Acid → HCID 178445801, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of methyl 1-((6-(trans-4-tert-butylcyclohexyloxy)quinazolin-2-yl)methyl)piperidine-4-carboxylate (150 mg, 0.34 mmol) and NaOH (27 mg, 0.68 mmol, 2.0 eq) in EtOH (5 mL) was stirred at 80° C. for 16 h. After cooling to room temperature, 1N HCl (5 ml) aqueous solution was added to adjust pH=3˜4. Solvent was evaporated in vacuum. The residue was purified by prep-HPLC (MeOH in 0.05% TFA/H2O 30-95% v/v as mobile phase) to give 1-((6-(trans-4-tert-butylcyclohexyloxy)quinazolin-2-yl)methyl)piperidine-4-carboxylic acid (105 mg, yield: 75%) as a pale yellow solid.

Provenance & Evidence