反应详情

To a suspension of 3-(7-fluoro-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 (0.110 g, 0.271 mmol) in EtOAc (10 mL) was added an EtOAc solution saturated with hydrogen chloride (3 mL). The reaction mixture was stirred at rt for 3 h then concentrated in vacuo and the residue was purified by preparative HPLC (Table 3, Method 1)) to give 6-(azetidin-3-ylamino)-7-fluoro-4-methyl-2,10-dihydro-9-oxa-1,2,4a-triaza-phenanthren-3-one hydrochloric acid as a white solid (0.026 g, 31%). LC/MS (Table 1, Method 5) Rt=1.853 min.; MS m/z: 306 [M+H]+.

1. concentrationthen concentrated in vacuo
2. customthe residue was purified by preparative HPLC (Table 3, Method 1))