Triethylamine → 1,1-Dimethylethyl 9-(5-{5-chloro-6-[(1-methylethyl)oxy]-3-pyridinyl}-1,2,4-oxadiazol-3-yl)-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate
反応式
C(N(CC)CC)C.[Cl:8][C:9]1[CH:10]=[C:11]([C:19]([OH:21])=O)[CH:12]=[N:13][C:14]=1[O:15][CH:16]([CH3:18])[CH3:17].O.OC1C2N=NNC=2C=CC=1.Cl.CN(C)CCCN=C=NCC.O[NH:46][C:47](=[NH:66])[C:48]1[C:58]2[O:57][CH2:56][CH2:55][N:54]([C:59]([O:61][C:62]([CH3:65])([CH3:64])[CH3:63])=[O:60])[CH2:53][C:52]=2[CH:51]=[CH:50][CH:49]=1>CN(C)C=O.C(OCC)(=O)C>[Cl:8][C:9]1[CH:10]=[C:11]([C:19]2[O:21][N:46]=[C:47]([C:48]3[C:58]4[O:57][CH2:56][CH2:55][N:54]([C:59]([O:61][C:62]([CH3:65])([CH3:64])[CH3:63])=[O:60])[CH2:53][C:52]=4[CH:51]=[CH:50][CH:49]=3)[N:66]=2)[CH:12]=[N:13][C:14]=1[O:15][CH:16]([CH3:17])[CH3:18]参加物
反応物 5
生成物 1
試薬・触媒・溶媒 2
反応条件
- 温度
- 60 °C
実験手順
Triethylamine (0.281 ml, 2.02 mmol) was added to a stirred solution of 5-chloro-6-[(1-methylethyl)oxy]-3-pyridinecarboxylic acid (may be prepared as described in WO9702244; 217 mg, 1.01 mmol) in N,N-dimethylformamide (20 ml) followed by hydroxybenzotriazole hydrate (185 mg, 1.21 mmol) then 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (232 mg, 1.21 mmol) and lastly 1,1-dimethylethyl 9-[(hydroxyamino)(imino)methyl]-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate (Preparation 65) (310 mg, 1.009 mmol). The reaction mixture was heated to 60° C. for 48 hours, then allowed to cool before diluting with ethyl acetate and washing with water. The organic phase was dried and evaporated. Purification of the residue by column chromatography, eluting with 15-25% ethyl acetate in cyclohexane to give the title compound as an amber coloured gum (280 mg).
後処理
- temperatureto cool
- washwashing with water
- customThe organic phase was dried
- customevaporated
- customPurification of the residue by column chromatography
- washeluting with 15-25% ethyl acetate in cyclohexane
出典と根拠
- ORDレコード
- ord-f8572d34488d45638b8d9da298115f82
- 出典データセット
- uspto-grants-2012_07
- 特許番号
- US08222245B2
反応ノート
読み込み中…