(2R,7S)-2-ethyl-14-(4-fluorophenyl)-14,15-diazatetracyclo[9.7.0.02,7.013,17]octadeca-1(11),12,15,17-tetraen-5-one;(2S,7R)-2-ethyl-14-(4-fluorophenyl)-14,15-diazatetracyclo[9.7.0.02,7.013,17]octadeca-1(11),12,15,17-tetraen-5-one → (2R,5R,7R)-2-ethyl-5-ethynyl-14-(4-fluorophenyl)-14,15-diazatetracyclo[9.7.0.02,7.013,17]octadeca-1(11),12,15,17-tetraen-5-ol;(2S,5S,7S)-2-ethyl-5-ethynyl-14-(4-fluorophenyl)-14,15-diazatetracyclo[9.7.0.02,7.013,17]octadeca-1(11),12,15,17-tetraen-5-ol
反応式
[C:1]([Mg]Br)#[CH:2].[CH2:5]([C@:7]12[CH2:31][CH2:30][C:29](=[O:32])[CH2:28][C@H:8]1[CH2:9][CH2:10][CH2:11][C:12]1[CH:13]=[C:14]3[C:18](=[CH:19][C:20]=12)[CH:17]=[N:16][N:15]3[C:21]1[CH:26]=[CH:25][C:24]([F:27])=[CH:23][CH:22]=1)[CH3:6].[CH2:33]([C@@:35]12[CH2:59][CH2:58][C:57](=[O:60])[CH2:56][C@@H:36]1[CH2:37][CH2:38][CH2:39][C:40]1[CH:41]=[C:42]3[C:46](=[CH:47][C:48]=12)[CH:45]=[N:44][N:43]3[C:49]1[CH:54]=[CH:53][C:52]([F:55])=[CH:51][CH:50]=1)[CH3:34]>C1COCC1>[CH2:5]([C@:7]12[CH2:31][CH2:30][C@:29]([C:1]#[CH:2])([OH:32])[CH2:28][C@@H:8]1[CH2:9][CH2:10][CH2:11][C:12]1[C:20]2=[CH:19][C:18]2[CH:17]=[N:16][N:15]([C:21]3[CH:26]=[CH:25][C:24]([F:27])=[CH:23][CH:22]=3)[C:14]=2[CH:13]=1)[CH3:6].[CH2:33]([C@@:35]12[CH2:59][CH2:58][C@@:57]([C:1]#[CH:2])([OH:60])[CH2:56][C@H:36]1[CH2:37][CH2:38][CH2:39][C:40]1[C:48]2=[CH:47][C:46]2[CH:45]=[N:44][N:43]([C:49]3[CH:54]=[CH:53][C:52]([F:55])=[CH:51][CH:50]=3)[C:42]=2[CH:41]=1)[CH3:34]参加物
反応物 2
生成物 1
試薬・触媒・溶媒 1
実験手順
Ethynylmagnesium bromide (0.5 M solution in THF, 6.00 mL, 3.00 mmol) was added dropwise over about 15 min to a mixture of (4aR,12bR)-12b-ethyl-9-(4-fluorophenyl)-1,4,4a,5,6,7,9,12b-octahydrobenzo[6,7]cyclohepta[1,2-f]indazole-3 (2H)-one; compound with (4aS,12bS)-12b-ethyl-9-(4-fluorophenyl)-1,4,4a,5,6,7,9,12b-octahydrobenzo[6,7]cyclohepta[1,2-f]indazol-3 (2H)-one (9, R1=4-Fluorophenyl, R2=Ethyl) (0.200 g, 0.531 mmol) and THF (2.5 mL) under a nitrogen atmosphere at about 0° C. After about 90 min, the ice bath was removed and the solution was stirred at rt for about 1 h. Sat. aq. NH4Cl (10 mL) and water (10 mL) were added. The solution was extracted with DCM (2×20 mL). The combined organics were dried over Na2SO4 and filtered. Silica gel (2 g) was added and the organic volatiles were removed under reduced pressure. The resulting solid was purified on silica gel (12 g) using a gradient of 0-3% EtOAc in DCM. The fractions containing product were combined and concentrated under reduced pressure to afford (3R,4aR,12bR)-12b-ethyl-3-ethynyl-9-(4-fluorophenyl)-1,2,3,4,4a,5,6,7,9,12b-decahydrobenzo[6,7]cyclohepta[1,2-f]indazol-3-ol; compound with (3S,4aS,12bS)-12b-ethyl-3-ethynyl-9-(4-fluorophenyl)-1,2,3,4,4a,5,6,7,9,12b-decahydrobenzo[6,7]cyclohepta[1,2-f]indazol-3-ol (11, R1=4-Fluorophenyl, R2=Ethyl, R3=Ethynyl) (0.116 g, 54% yield). LC/MS, method 2, Rt=2.78 min, MS m/z 403 (M+H)+. 1H NMR (400 MHz, DMSO) δ 8.26 (d, J=0.7 Hz, 1H), 7.91 (s, 1H), 7.83-7.76 (m, 2H), 7.55 (s, 1H), 7.45-7.36 (m, 2H), 5.48 (s, 1H), 3.24 (s, 1H), 3.22-3.11 (m, 1H), 2.98-2.88 (m, 1H), 2.32-2.23 (m, 1H), 2.20-1.48 (m, 11H), 1.41-1.26 (m, 1H), 0.37 (t, J=7.3 Hz, 3H).
後処理
- customthe ice bath was removed
- additionSat. aq. NH4Cl (10 mL) and water (10 mL) were added
- extractionThe solution was extracted with DCM (2×20 mL)
- dry with materialThe combined organics were dried over Na2SO4
- filtrationfiltered
- additionSilica gel (2 g) was added
- customthe organic volatiles were removed under reduced pressure
- customThe resulting solid was purified on silica gel (12 g)
- additionThe fractions containing product
- concentrationconcentrated under reduced pressure
出典と根拠
- ORDレコード
- ord-d5bb5ba6f4e14009b102c3fad73c6217
- 出典データセット
- uspto-grants-2015_11
- 特許番号
- US09193744B2
反応ノート
読み込み中…