4-t-Butylbenzenesulfonyl chloride → 4-tert-butyl-N-[6-methoxy-5-(2-methoxyphenoxy)-2-(2-pyrimidinyl)-4-pyrimidinyl]benzenesulfonamide
反応式
[C:1]([C:5]1[CH:10]=[CH:9][C:8]([S:11](Cl)(=[O:13])=[O:12])=[CH:7][CH:6]=1)([CH3:4])([CH3:3])[CH3:2].[NH2:15][C:16]1[C:21]([O:22][C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=2[O:29][CH3:30])=[C:20]([O:31][CH3:32])[N:19]=[C:18]([C:33]2[N:38]=[CH:37][CH:36]=[CH:35][N:34]=2)[N:17]=1>N1C=CC=CC=1>[C:1]([C:5]1[CH:10]=[CH:9][C:8]([S:11]([NH:15][C:16]2[C:21]([O:22][C:23]3[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=3[O:29][CH3:30])=[C:20]([O:31][CH3:32])[N:19]=[C:18]([C:33]3[N:38]=[CH:37][CH:36]=[CH:35][N:34]=3)[N:17]=2)(=[O:13])=[O:12])=[CH:7][CH:6]=1)([CH3:4])([CH3:3])[CH3:2]参加物
実験手順
4-tert-Butyl-benzene sulphonyl chloride (286 mg) was added to a stirred solution of 4-amino-6-methoxy-5-(2-methoxyphenoxy)-2-(2-pyrimidinyl)-pyrimidine (EP 713875A1) (100 mg) in dry pyridine (2 ml) at room temperature and the resulting mixture stirred for 36 hours. The reaction was then partitioned between ethyl acetate (20 ml) and 2N aqueous hydrochloric acid (10 ml) and the organic phase separated, washed (2N aqueous hydrochloric acid 2×10 ml, water 2×10 ml), dried (MgSO4) and evaporated under reduced pressure. Column chromatography on silica eluting with a solvent gradient of pentane:ethyl acetate 25:75 changing to 0:100, then dichloromethane:methanol 95:5 gave 4-tert-butyl-N-[6-methoxy-5-(2-methoxyphenoxy)-2-(2-pyrimidinyl)-4-pyrimidinyl]benzenesulfonamide as an off-white coloured solid (5 mg).
後処理
- customThe reaction was then partitioned between ethyl acetate (20 ml) and 2N aqueous hydrochloric acid (10 ml)
- customthe organic phase separated
- washwashed (2N aqueous hydrochloric acid 2×10 ml, water 2×10 ml)
- dry with materialdried (MgSO4)
- customevaporated under reduced pressure
出典と根拠
- ORDレコード
- ord-b9c55d95b4d949b8b8f09fb1262a142b
- 出典データセット
- uspto-grants-2003_08
- 特許番号
- US06610518B2
反応ノート
読み込み中…