[C:1](OC(=O)C)(=[O:3])[CH3:2].Cl.[CH3:9][O:10][C:11]1[CH:12]=[CH:13][C:14]2[CH2:15][C@H:16]3[NH:27][CH2:26][CH2:25][C@@:22]4([C:23]=2[CH:24]=1)[C@H:17]3[CH2:18][CH2:19][CH2:20][CH2:21]4.C(N(CC)CC)C>C1COCC1>[CH3:9][O:10][C:11]1[CH:12]=[CH:13][C:14]2[CH2:15][C@H:16]3[N:27]([C:1](=[O:3])[CH3:2])[CH2:26][CH2:25][C@@:22]4([C:23]=2[CH:24]=1)[C@H:17]3[CH2:18][CH2:19][CH2:20][CH2:21]4Acetic anhydride (3.14 g, 30.76 mmol) was added to a solution of (+)-3-methoxy-morphinan hydrochloride (1.5 g, 5.1 mmol) in THF (30 ml) and triethylamine (8.7 g, 85.98 mmol) in the presence of nitrogen. The resulting solution was heated at 60° C. for 15 hr. The reaction mixture was cooled to room temperature and evaporated under vacuum. The residue was dissolved in methylene chloride (50 ml), washed with water (40 ml×2) and dried (MgSO4). Evaporation of the dried solution gave a tan viscous oil (1.25 g, 81% yield); ms (ESI+): m/z 300(M+1).
Wird geladen…
