[F:1][C:2]([F:8])([F:7])[C:3](OC)=[O:4].C(N(CC)CC)C.[NH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][C:28]([OH:30])=[O:29].Cl>CO.C(OCC)(=O)C>[F:8][C:2]([F:1])([F:7])[C:3]([NH:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][C:28]([OH:30])=[O:29])=[O:4]
Methyl trifluoroacetate (200 μL, 1.99 mmoles) and triethylamine (184 μL, 1.32 mmoles) were added to a suspension of 12-aminododecanoic acid (300 mg, 1.32 mmoles) in methanol (2 mL). After the mixture was stirred vigorously for 18 h, 1 N HCl was added dropwise until the a pH of 2 was obtained. The reaction was added to ethyl acetate (20 mL) was washed with 1 N HCl (2×5 mL), dried over MgSO4, and concentrated in vacuo to yield the amide as a white solid (398 mg, 1.28 mmoles, 97%). LRMS: not performed. 1H NMR: spectrum is consistent with the predicted structure.
読み込み中…
