C(OC(=O)[NH:7][CH2:8][C:9]1[CH:14]=[CH:13][C:12]([C:15](=[O:24])[NH:16][CH2:17][CH2:18][N:19]2[CH2:23][CH2:22][CH2:21][CH2:20]2)=[CH:11][CH:10]=1)(C)(C)C.[ClH:26]>CO.CC(O)C>[ClH:26].[ClH:26].[NH2:7][CH2:8][C:9]1[CH:10]=[CH:11][C:12]([C:15]([NH:16][CH2:17][CH2:18][N:19]2[CH2:23][CH2:22][CH2:21][CH2:20]2)=[O:24])=[CH:13][CH:14]=1To a solution of [4-(2-Pyrrolidin-1-yl-ethylcarbamoyl)-benzyl]-carbamic acid tert-butyl ester (400 mg, 1.15 mmol) in MeOH (30 mL) was added 6M HCl in IPA (25 mL). The mixture was stirred at ambient temperature for 5 h. After this time a precipitate had formed and was filtered and dried to yield the title compound. m/z (M+1) 248.34.
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