C(OC(=O)[NH:7][CH:8]1[CH2:13][CH2:12][CH:11]([NH:14][C:15]2[C:16]3[N:17]([C:21]([C:24]4[CH:29]=[CH:28][CH:27]=[C:26]([NH:30][CH2:31][C:32]5[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=5)[N:25]=4)=[CH:22][N:23]=3)[CH:18]=[CH:19][N:20]=2)[CH2:10][CH2:9]1)(C)(C)C>C(O)C.Cl>[CH2:31]([NH:30][C:26]1[N:25]=[C:24]([C:21]2[N:17]3[CH:18]=[CH:19][N:20]=[C:15]([NH:14][CH:11]4[CH2:12][CH2:13][CH:8]([NH2:7])[CH2:9][CH2:10]4)[C:16]3=[N:23][CH:22]=2)[CH:29]=[CH:28][CH:27]=1)[C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1The mixture of {4-[3-(6-benzylamino-pyridin-2-yl)-imidazo[1,2-a]pyrazin-8-ylamino]-cyclohexyl}-carbamic acid tert-butyl ester (80 mg, 0.156 mmol) in ethanol (4 mL) and concentrated HCl (4 mL) was stirred at room temperature for 15 hours. The reaction mixture was then concentrated under reduced pressure. The obtained crude product was purified by preparative-HPLC to give N-[3-(6-benzylamino-pyridin-2-yl)-imidazo[1,2-a]pyrazin-8-yl]-cyclohexane-1,4-diamine; hydrochloride. (Yield 50 mg).
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