[CH2:1]([NH:17][C:18]1[CH:28]=[CH:27][C:21]([CH2:22][CH2:23][C:24](O)=[O:25])=[CH:20][CH:19]=1)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH3:16].C(Cl)[Cl:30].[ClH:32]>COCCOC>[ClH:30].[CH2:1]([NH:17][C:18]1[CH:19]=[CH:20][C:21]([CH2:22][CH2:23][C:24]([Cl:32])=[O:25])=[CH:27][CH:28]=1)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH3:16]A solution of 37.6 g. of 4-hexadecylaminohydrocinnamic acid, prepared as described in Example 4, in 1200 ml. of methylene chloride and 300 ml. of 1,2-dimethoxyethane is stirred under reflux while hydrogen chloride gas is bubbled in for 1 hour. The mixture is then treated with 65.5 g. of thionyl chloride and stirred under reflux for another 1 hour. The dark solution is evaporated in vacuo to yield 4-(hexadecylamino)hydrocinnamoyl chloride hydrochloride.
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