Trifluoroacetic acid → Trifluoroacetic acid
反応式
[O:1]=[S:2]1(=[O:51])[CH2:7][CH2:6][N:5]([CH2:8][C:9]([NH:11][C@:12]23[CH2:47][CH2:46][C@@H:45]([CH:48]([CH3:50])[CH3:49])[C@@H:13]2[C@@H:14]2[C@@:27]([CH3:30])([CH2:28][CH2:29]3)[C@@:26]3([CH3:31])[C@@H:17]([C@:18]4([CH3:44])[C@@H:23]([CH2:24][CH2:25]3)[C:22]([CH3:33])([CH3:32])[C:21]([C:34]3[CH:43]=[CH:42][C:37]([C:38]([O:40]C)=[O:39])=[CH:36][CH:35]=3)=[CH:20][CH2:19]4)[CH2:16][CH2:15]2)=[O:10])[CH2:4][CH2:3]1.[C:52]([OH:58])([C:54]([F:57])([F:56])[F:55])=[O:53].O.[OH-].[Li+]>C1COCC1.O>[O:51]=[S:2]1(=[O:1])[CH2:7][CH2:6][N:5]([CH2:8][C:9]([NH:11][C@:12]23[CH2:47][CH2:46][C@@H:45]([CH:48]([CH3:49])[CH3:50])[C@@H:13]2[C@@H:14]2[C@@:27]([CH3:30])([CH2:28][CH2:29]3)[C@@:26]3([CH3:31])[C@@H:17]([C@:18]4([CH3:44])[C@@H:23]([CH2:24][CH2:25]3)[C:22]([CH3:33])([CH3:32])[C:21]([C:34]3[CH:43]=[CH:42][C:37]([C:38]([OH:40])=[O:39])=[CH:36][CH:35]=3)=[CH:20][CH2:19]4)[CH2:16][CH2:15]2)=[O:10])[CH2:4][CH2:3]1.[C:52]([OH:58])([C:54]([F:57])([F:56])[F:55])=[O:53]参加物
反応物 3
生成物 2
試薬・触媒・溶媒 2
反応条件
- 温度
- 75 °C
実験手順
To a solution of methyl 4-[(1S,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-[[2-(1,1-dioxo-1,4-thiazinan-4-yl)acetyl]amino]-1-isopropyl-5a,5b,8,8,11a-pentamethyl-1,2,3,4,5,6,7,7a,11,11b,12,13,13a,13b-tetradecahydrocyclopenta[a]chrysen-9-yl]benzoate, TFA (33 mg, 0.040 mmol) in THF (Volume: 3 mL) was added a 0.753 molar solution of lithium hydroxide monohydrate (0.316 mL, 0.158 mmol) in H2O. The reaction mixture was heated to 75° C. After 5.5 h, the reaction was concentrated to dryness. The crude residue was dissolved in THF (1.2 mL), MeOH (0.3 mL) and 1N HCl (0.2 mL). The solution was filtered and injected into reverse phase HPLC for purification using HPLC method 3 to give 4-((1S,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-(((1,1-dioxido-4-thiomorpholinyl)acetyl)amino)-1-isopropyl-5a,5b,8,8,11a-pentamethyl-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoic acid, TFA (17.9 mg, 0.021 mmol, 54.1% yield) as a white solid. LCMS: m/z 707.6 (M+H+), retention time 2.030 min (method 6). 1H NMR (500 MHz, METHANOL-d4) δ=7.93 (d, J=8.5 Hz, 2H), 7.21 (d, J=8.5 Hz, 2H), 7.13 (s, 1H), 5.31 (dd, J=1.5, 6.1 Hz, 1H), 3.26-3.22 (m, 5H), 3.21-3.15 (m, 4H), 2.66-2.59 (m, 1H), 2.37 (dd, J=6.7, 12.5 Hz, 1H), 2.17 (dd, J=6.4, 17.1 Hz, 1H), 1.99-1.91 (m, 1H), 1.80-1.70 (m, 4H), 1.67-1.57 (m, 2H), 1.57-1.45 (m, 9H), 1.44-1.39 (m, 1H), 1.39-1.26 (m, 3H), 1.18-1.11 (m, 2H), 1.09 (s, 3H), 1.04 (s, 6H), 0.96 (s, 3H), 0.95 (s, 3H), 0.91 (d, J=7.0 Hz, 3H), 0.82 (d, J=6.7 Hz, 3H).
後処理
- concentrationthe reaction was concentrated to dryness
- dissolutionThe crude residue was dissolved in THF (1.2 mL)
- filtrationThe solution was filtered
- custominjected into reverse phase HPLC for purification
出典と根拠
- ORDレコード
- ord-0ee1c699b9a24e7389f6ff25fa219f7d
- 出典データセット
- uspto-grants-2014_09
- 特許番号
- US08846647B2
反応ノート
読み込み中…