[CH3:1][N:2]([CH3:18])[CH:3]1[CH2:15][C:14]2[C:13]3[C:8](=[C:9](Br)[CH:10]=[CH:11][C:12]=3[F:16])[NH:7][C:6]=2[CH2:5][CH2:4]1.CO.[OH-].[K+]>[Pd].O>[CH3:1][N:2]([CH3:18])[CH:3]1[CH2:15][C:14]2[C:13]3[C:8](=[CH:9][CH:10]=[CH:11][C:12]=3[F:16])[NH:7][C:6]=2[CH2:5][CH2:4]1Following a procedure similar to that described in Example 234 but using 2 g. of 3-(dimethylamino)-8-bromo-5-fluoro-1,2,3,4-tetrahydrocarbazole (Example 219), in 100 ml. of methyl alcohol, 1 g. of 10% palladium on charcoal and 1 g. of potassium hydroxide in 2 ml. of water there was obtained, after recrystallization from benzene, 1.3 g. of 3-(dimethylamino)-5-fluoro-1,2,3,4-tetrahydrocarbazole, m.p. 166°-168°C.
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