Trifluoroacetic acid → HCID 55290747、化合物
反応式
FC(F)(F)C(O)=O.[OH:8][CH2:9][C:10]1[CH:14]=[C:13]([CH2:15][NH:16]C(OC(C)(C)C)=O)[O:12][N:11]=1>C(Cl)Cl>[NH3:11].[OH:8][CH2:9][C:10]1[CH:14]=[C:13]([CH2:15][NH2:16])[O:12][N:11]=1参加物
5
実験手順
Trifluoroacetic acid (4 ml, 54 mmol) was added to a solution of 3-hydroxymethyl-5-[N-(tert-butyloxycarbonyl)aminomethyl]isoxazole (Method 75; 1.25 g, 5.4 mmol) in DCM (40 ml). The mixture was stirred at ambient temperature for 18 hours then the volatiles removed by evaporation. The residue was purified by chromatography on a SCX-2 column (50 g) eluting with methanol then 7N ammonia in methanol to give the title compound (676 mg, 96%). NMR (DMSO): 1.97 (br s, 2H), 3.76 (s, 2H), 4.44 (s, 2H), 5.38 (s, 1H), 6.26 (s, 1H).
後処理
- customthe volatiles removed by evaporation
- customThe residue was purified by chromatography on a SCX-2 column (50 g)
- washeluting with methanol
出典と根拠
- ORDレコード
- ord-90c1ead4e53a4e3489884b94115bed20
- 出典データセット
- uspto-grants-2009_04
- 特許番号
- US07521453B2
反応ノート
読み込み中…