Sodium Hydroxide → 9-Bromo-10-fluoro-3,4,7,8-tetrahydro-[1,4]diazepino[7,1-a]isoquinoline-2,5-dione
反応式
[Br:1][C:2]1[C:11]([F:12])=[CH:10][CH:9]=[C:8]2[C:3]=1[CH2:4][CH2:5][N:6]([C:17](=[O:27])[CH2:18][NH:19][C:20](OC(C)(C)C)=[O:21])[CH:7]2[CH2:13]C(O)=O.BrC1C(F)=CC=C2C=1CCN(C(=O)CNC(OC(C)(C)C)=O)C2CC(OC)=O.[OH-].[Na+]>CCO>[Br:1][C:2]1[C:11]([F:12])=[CH:10][CH:9]=[C:8]2[C:3]=1[CH2:4][CH2:5][N:6]1[C:17](=[O:27])[CH2:18][NH:19][C:20](=[O:21])[CH:13]=[C:7]12参加物
反応物 3
生成物 1
試薬・触媒・溶媒 1
実験手順
2-(5-bromo-2-(2-((tert-butoxycarbonyl)amino)acetyl)-6-fluoro-1,2,3,4-tetrahydroisoquinolin-1-yl)acetic acid. To a stirred solution of methyl 2-(5-bromo-2-(2-((tert-butoxycarbonyl)amino)acetyl)-6-fluoro-1,2,3,4-tetrahydroisoquinolin-1-yl)acetate (62.6 g, 136 mmol) in EtOH (500 mL), 4N aqueous NaOH (39.5 mL, 158 mmol) was added and the solution was stirred at RT for 2 h. The white precipitate was filtered off and the white solid was washed with a small amount of EtOH (1×) and diethyl ether (2×). The sodium salt was partitioned between 0.5N aqueous HCl and DCM, the organic layer was separated and washed with 0.5N aqueous HCl (1×) and brine (1×). The combined organic layers were dried with sodium sulfate, filtered and the solvent was removed under reduced pressure. The residue was dried under high vacuo overnight to yield the title compound as white foam (58.45 g). UPLC-MS: MS 445.2/447.2 (M+H+); UPLC rt 0.99 min.
後処理
- filtrationThe white precipitate was filtered off
- washthe white solid was washed with a small amount of EtOH (1×) and diethyl ether (2×)
- customThe sodium salt was partitioned between 0.5N aqueous HCl and DCM
- customthe organic layer was separated
- washwashed with 0.5N aqueous HCl (1×) and brine (1×)
- dry with materialThe combined organic layers were dried with sodium sulfate
- filtrationfiltered
- customthe solvent was removed under reduced pressure
- customThe residue was dried under high vacuo overnight
出典と根拠
- ORDレコード
- ord-2ae10517f8804e2a881a75df99de775c
- 出典データセット
- uspto-grants-2016_03
- 特許番号
- US09284331B2
反応ノート
読み込み中…