Maleic Acid → HCID 66669977, compound

Participants

Reaction Steps

To a solution of (R)-1-(4-(5-(7-methoxyquinolin-4-yloxy)pyridin-2-ylcarbamoyl)-2,3-dihydro-5-methyl-3-oxo-2-phenylpyrazol-1-yl)propan-2-yl 2-(methylamino)acetate (80 mg, 0.134 mmol) in MeOH (10 mL) was added maleic acid (46.74 mg, 0.40 mmol, Shanghai San'aisi Reagent Co., Ltd). After stirring for 40 min, the reaction mixture was concentrated in vacuo. The resulted residue was recrystallized in a mixture of MeOH (4 mL)/EtOAc (8 mL). The solid was collected by filtration, washed with EtOAc (5 mL×3) and dried under vacuum overnight. The title compound was obtained as a yellow solid (68.8 mg, 67%).

Provenance & Evidence