反応式
[CH3:1][S:2][C:3]1[N:8]=[C:7]([C:9]([OH:11])=O)[CH:6]=[CH:5][N:4]=1.O.ON1C2C=CC=CC=2N=N1.Cl.CN(C)CCCN=C=NCC.Cl.[CH3:36][NH:37][O:38][CH3:39].C(N(CC)CC)C.C(=O)(O)[O-].[Na+]>CC#N>[CH3:39][O:38][N:37]([CH3:36])[C:9]([C:7]1[CH:6]=[CH:5][N:4]=[C:3]([S:2][CH3:1])[N:8]=1)=[O:11]参加物
反応物 6
生成物 1
試薬・触媒・溶媒 1
実験手順
To a slurry of 2-methylsulfanyl-pyrimidine-4-carboxylic acid (10.0 g, 59.2 mmol) in CH3CN (300 mL) is added in sequence: 1-hydroxybenzotriazole hydrate (9.59 g, 71.0 mmol), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (13.6 g, 71.0 mmol), N,O-dimethylhydroxylamine hydrochloride (8.66 g, 88.8 mmol), and triethylamine (Et3N) (24.9 mL, 178 mmol). The resulting slurry is stirred overnight at ambient temperature. After 16 hours, the reaction mixture is poured into a saturated aqueous solution of sodium bicarbonate (300 mL) and the layers separated. The aqueous layer is extracted with ethyl acetate (3×250 mL). The combined organic layers are washed with brine, dried over sodium sulfate, filtered and concentrated in vacuo and the resulting residue is purified over silica (100% EtOAc) to afford 10.1 g (89% yield) of the desired product as a yellow oil. 1H NMR (300 MHz, CDCl3) δ 8.65 (d, J=4.9 Hz, 1H), 7.15 (br s, 1H), 3.77 (br s, 3H), 3.38 (br s, 3H), 2.61 (s, 3H); MS (ESI) m/z 214 (M+1).
後処理
- waitAfter 16 hours
- customthe layers separated
- extractionThe aqueous layer is extracted with ethyl acetate (3×250 mL)
- washThe combined organic layers are washed with brine
- dry with materialdried over sodium sulfate
- filtrationfiltered
- concentrationconcentrated in vacuo
- customthe resulting residue is purified over silica (100% EtOAc)
出典と根拠
- ORDレコード
- ord-634c3a38036a42ff89a13908cee81827
- 出典データセット
- uspto-grants-2009_01
- 特許番号
- US07482356B2
関連ノート
読み込み中…