[Br:1][C:2]1[CH:3]=[C:4]([CH:13]=[CH:14][CH:15]=1)[O:5][CH:6]1[CH2:9][N:8]([C:10](Cl)=[O:11])[CH2:7]1.[OH-].[NH4+:17]>O1CCCC1.O>[Br:1][C:2]1[CH:3]=[C:4]([CH:13]=[CH:14][CH:15]=1)[O:5][CH:6]1[CH2:9][N:8]([C:10]([NH2:17])=[O:11])[CH2:7]1A solution of 5.8 g (0.02 mole) of 3-(3-bromophenoxy)-1-azetidinecarbonyl chloride in 20 ml of tetrahydrofuran was stirred at ambient temperature while 4 ml (0.06 mole) of 57% ammonium hydroxide was slowly added. After stirring for 48 hr, the reaction mixture was diluted with 100 ml of water and the resulting solid collected by filtration (5 g). Recrystallization from isopropanol yielded 3.7 g (59%) of fine beige crystals, m.p. 188°-189° C.
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