Trifluoroacetic acid → 4-Methyl-6-(2-methyl-azetidin-3-ylamino)-2,10-dihydro-9-oxa-1,2,4a-triaza-phenanthren-3-one trifluoroacetic acid

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Reaction Steps

To a solution of 2-methyl-3-(4-methyl-3-oxo-2,3,4,10-tetrahydro-9-oxa-1,2,4a-triaza-phenanthren-6-ylamino)-azetidine-1-carboxylic acid tert-butyl ester (0.016 g, 0.040 mmol) in DCM (2 mL) was added TFA (0.4 mL) and the mixture was stirred at ambient temperature for 2 h. The solvent was removed in vacuo to give 4-methyl-6-(2-methyl-azetidin-3-ylamino)-2,10-dihydro-9-oxa-1,2,4a-triaza-phenanthren-3-one trifluoroacetic acid (0.012 g, 100%) LC/MS (Table 1, Method 5) Rt=1.582 min.; MS m/z: 302 [M+H]+.

Provenance & Evidence