Trifluoroacetic acid → (1R,3S)-benzyl 1-(1-adamantyl)methyl-1,2,3,4-tetrahydro-9H-pyrido[3,4-b]-indole-3-carboxylate
反応式
FC(F)(F)C(O)=O.[CH2:8]([O:15][C:16](=[O:29])[C@H:17]([CH2:19][C:20]1[C:28]2[C:23](=[CH:24][CH:25]=[CH:26][CH:27]=2)[NH:22][CH:21]=1)[NH2:18])[C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1.[C:30]12([CH2:40][CH:41]=O)[CH2:39][CH:34]3[CH2:35][CH:36]([CH2:38][CH:32]([CH2:33]3)[CH2:31]1)[CH2:37]2.C(OCC)(=O)C.C(Cl)Cl>C(Cl)Cl>[C:30]12([CH2:40][C@@H:41]3[C:21]4[NH:22][C:23]5[C:28]([C:20]=4[CH2:19][C@@H:17]([C:16]([O:15][CH2:8][C:9]4[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=4)=[O:29])[NH:18]3)=[CH:27][CH:26]=[CH:25][CH:24]=5)[CH2:31][CH:32]3[CH2:38][CH:36]([CH2:35][CH:34]([CH2:33]3)[CH2:39]1)[CH2:37]2参加物
反応物 4
生成物 1
試薬・触媒・溶媒 1
実験手順
Trifluoroacetic acid (270 μl, 3.5 mmol) was added to a solution of L-tryptophan benzyl ester (10.23 g, 34.8 mmol) and 1-adamantylacetaldehyde (6.2 g, 34.8 mmol) in dry DCM (300 ml) wth 3A molecular sieves (46.5 g) at -10° C. The reaction mixture was allowed to warm to room temperature and stirred for 7 hours. The mixture was cooled to 0° C. trifluoroacetic acid (5.6 ml, 72.7 mmol) added, and stirring continued at room temperature for 16 hours. The reaction mixture was filtered, washed successively with saturated NaHCO3 solution (200 ml), brine (2×200 ml) and dried (MgSO4). Filtration and evaporation of the solvent gave the crude product. The compound was obtained by isolation of the more polar component by flash chromatography on silica gel with ethyl acetate-DCM (1:40) as eluant. (6.2 g, 39%)
後処理
- additionadded
- stirringstirring
- waitcontinued at room temperature for 16 hours
- filtrationThe reaction mixture was filtered
- washwashed successively with saturated NaHCO3 solution (200 ml), brine (2×200 ml)
- dry with materialdried (MgSO4)
- filtrationFiltration and evaporation of the solvent
- customgave the crude product
出典と根拠
- ORDレコード
- ord-d3600634d0a145f38dd566702bcc0cb8
- 出典データセット
- uspto-grants-2000_05
- 特許番号
- US06057311
反応ノート
読み込み中…