[CH2:1]([NH:15][CH2:16][CH2:17][NH:18][CH2:19][CH2:20][NH2:21])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH3:14].[CH:22]([CH2:24][CH:25]([CH3:30])[C:26](OC)=[O:27])=O>>[CH2:1]([NH:15][CH2:16][CH2:17][N:18]1[C:26](=[O:27])[CH:25]([CH3:30])[CH2:24][CH:22]=[N:21][CH2:20][CH2:19]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][CH3:14]Into an apparatus similar to that in Example 1, where charged 299.5 g (1 mole) of N-tetradecyldiethylenetriamine and 130.1 g (1 mole) of methyl 3-formyl-2-methylpropionate. At 145° to 150° C., 18 g of water and 32 g of methanol were distilled off to obtain 4-tetradecylaminoethyl-6-methyl-2,3,6,7-tetrahydro-1,4-diazocin-5-one.
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