Trifluoroacetic acid → 1-[[4-[8-Chloro-2-(4-isopropylthiazol-2-yl)-7-methoxyquinolin-4-yloxy]pyrrolidine-2-carbonyl]amino]-2-vinylcyclopropanecarboxylic acid ethyl ester

Participants

Reaction Steps

To a stirred solution of 4-[8-chloro-2-(4-isopropylthiazol-2-yl)-7-methoxyquinolin-4-yloxy]-2-(1-ethoxycarbonyl-2-vinylcyclopropylcarbamoyl)pyrrolidine-1-carboxylic acid tert-butyl ester (49, 0.7 g, 1.02 mmol) in CH2Cl2 (8 mL) was added trifluoroacetic acid (2.0 mL). After 2 h at room temperature, the reaction mixture was concentrated and the residue was partitioned between a saturated solution of NaHCO3 and DCM. The organic layer was dried (MgSO4) filtered and concentrated to give 580 mg (97%) of the title product (50) as a colorless oil: m/z=585 (M+H)+.

Provenance & Evidence