反应详情

To a solution of 3-(7-fluoro-4-methyl-3-oxo-2,3,4,10-tetrahydro-9-oxa-1,2,4a-triaza-phenanthren-6-yloxy)-3-methyl-azetidine-1-carboxylic acid tert-butyl ester (0.033 g, 0.078 mmol) in DCM (2 mL) was added TFA (0.5 mL) dropwise and the mixture was stirred at ambient temperature for 2 h. The solvent was removed in vacuo to give 7-fluoro 4-methyl-6-(3-methyl-azetidin-3-yloxy)-2,10-dihydro-9-oxa-1,2,4a-triaza-phenanthren-3-one trifluoroacetic acid as a white solid (0.017 g, 67%). LC/MS (Table 1, Method 5) Rt=1.806 min; MS m/z: 321 [M+H]+.

1. customThe solvent was removed in vacuo