N-Iodosuccinimide → 2-(2-Chlorophenyl)-3-(4-chlorophenyl)-7-iodomethyl-6,7-dihydro-8-oxa-1,4,8b-triaza-as-indacene
反応式
[CH2:1]([C:4]1[CH:5]=[N:6][C:7]2[N:8]([N:11]=[C:12]([C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][C:22]=3[Cl:27])[C:13]=2[C:14]2[CH:19]=[CH:18][C:17]([Cl:20])=[CH:16][CH:15]=2)[C:9]=1[OH:10])[CH:2]=[CH2:3].[I:28]N1C(=O)CCC1=O>C(Cl)Cl.C(Cl)(Cl)Cl>[Cl:27][C:22]1[CH:23]=[CH:24][CH:25]=[CH:26][C:21]=1[C:12]1[C:13]([C:14]2[CH:19]=[CH:18][C:17]([Cl:20])=[CH:16][CH:15]=2)=[C:7]2[N:8]([C:9]3[O:10][CH:2]([CH2:3][I:28])[CH2:1][C:4]=3[CH:5]=[N:6]2)[N:11]=1参加物
実験手順
To a mixture of 6-allyl-3-(4-chlorophenyl)-2-(2-chlorophenyl)-pyrazolo[1,5-a]pyrimidin-7-ol (I-15A-1a; 25 mg, 0.063 mmol) in 9:1 methylene chloride/chloroform (0.63 ml) at 0° C. was added N-iodosuccinimide (15 mg, 0.066 mmol), portionwise. The reaction was stirred overnight at room temperature and then extracted from water with ethyl acetate. The combined organic layers were washed with brine, dried (MgSO4), and then concentrated, in vacuo. Purification on a Biotage™ Flash 12S column using 20% ethyl acetate in hexanes as eluant afforded compound 15A-1 (15 mg, 46%) as a solid: +ESI MS (M+1) 522.3; 1H NMR (400 MHz, CD3OD) δ 8.46 (s, 1H), 7.53–7.40 (m, 6H), 7.24 (d, J=8.7 Hz, 2H), 5.45–5.41 (m, 1H), 3.81–3.64 (m, 2H), 3.33 (d, J=6.2 Hz, 2H).
後処理
- extractionextracted from water with ethyl acetate
- washThe combined organic layers were washed with brine
- dry with materialdried (MgSO4)
- concentrationconcentrated, in vacuo
- customPurification on a Biotage™ Flash 12S column
- customafforded compound 15A-1 (15 mg, 46%) as a solid
出典と根拠
- ORDレコード
- ord-45c210288c4843b49c840a060e68abf2
- 出典データセット
- uspto-grants-2007_02
- 特許番号
- US07176210B2
反応ノート
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