[ClH:1].C(OCC)(=O)C.[O:8]1[CH2:13][CH2:12][N:11]([CH2:14][CH2:15][CH2:16][NH:17][C:18](=[O:51])[O:19][CH2:20][CH2:21][CH:22]2[CH2:27][CH2:26][CH2:25][CH2:24][N:23]2[C:28](=[O:50])[CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][CH2:43][CH2:44][CH2:45][CH2:46][CH2:47][CH2:48][CH3:49])[CH2:10][CH2:9]1>C(OCC)(=O)C>[ClH:1].[O:8]1[CH2:13][CH2:12][N:11]([CH2:14][CH2:15][CH2:16][NH:17][C:18](=[O:51])[O:19][CH2:20][CH2:21][CH:22]2[CH2:27][CH2:26][CH2:25][CH2:24][N:23]2[C:28](=[O:50])[CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][CH2:43][CH2:44][CH2:45][CH2:46][CH2:47][CH2:48][CH3:49])[CH2:10][CH2:9]14N hydrochloric acid/ethyl acetate solution (1.35 ml) was added to a solution of 2-(1-docosanoyl-2-piperidyl)ethyl N-(3-morpholinopropyl)carbamate (2.800 g) in ethyl acetate (28 ml), while being cooled with ice. After being stirred for 0.5 hour, the reaction mixture was concentrated. The residue was recrystallized with ethyl acetate, thereby yielding the entitled compound (2.546 g) as white solid.
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