Cl.[N:2]12[CH2:9][CH2:8][CH:5]([CH2:6][CH2:7]1)[C@@H:4]([NH:10][C:11]([C:13]1[O:14][C:15]3[C:21]([C:22]4[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=4[O:28][CH3:29])=[CH:20][CH:19]=[CH:18][C:16]=3[CH:17]=1)=[O:12])[CH2:3]2>C(OCC)(=O)C>[N:2]12[CH2:7][CH2:6][CH:5]([CH2:8][CH2:9]1)[C@@H:4]([NH:10][C:11]([C:13]1[O:14][C:15]3[C:21]([C:22]4[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=4[O:28][CH3:29])=[CH:20][CH:19]=[CH:18][C:16]=3[CH:17]=1)=[O:12])[CH2:3]2600 mg (1.45 mmol) of N-[(3R)-1-azabicyclo[2.2.2]oct-3-yl]-7-[2-(methoxy)phenyl]-1-benzofuran-2-carboxamide hydrochloride (Example 102) are dissolved in 15 ml of ethyl acetate and extracted three times with 1N sodium hydroxide solution. The organic phase is dried over sodium sulphate and then concentrated. Drying under high vacuum results in 534 mg (97.6% of theory) of the title compound.
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