Sodium Sulfate → 1-{3-[4-(2-chloro-6-nitro-phenyl)-piperazin-1-yl]-propyl}-5-methanesulfonyl-3-(4-trifluoromethyl-phenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine

HRID 271768ノート

反応式

HRID 271768 の反応式
[CH3:1][S:2]([N:5]1[CH2:10][CH2:9][C:8]2[N:11]([CH2:24][CH2:25][CH:26]=O)[N:12]=[C:13]([C:14]3[CH:19]=[CH:18][C:17]([C:20]([F:23])([F:22])[F:21])=[CH:16][CH:15]=3)[C:7]=2[CH2:6]1)(=[O:4])=[O:3].[Cl:28][C:29]1[CH:34]=[CH:33][CH:32]=[C:31]([N+:35]([O-:37])=[O:36])[C:30]=1[N:38]1[CH2:43][CH2:42][NH:41][CH2:40][CH2:39]1.S([O-])([O-])(=O)=O.[Na+].[Na+].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>C(Cl)Cl>[Cl:28][C:29]1[CH:34]=[CH:33][CH:32]=[C:31]([N+:35]([O-:37])=[O:36])[C:30]=1[N:38]1[CH2:43][CH2:42][N:41]([CH2:26][CH2:25][CH2:24][N:11]2[C:8]3[CH2:9][CH2:10][N:5]([S:2]([CH3:1])(=[O:4])=[O:3])[CH2:6][C:7]=3[C:13]([C:14]3[CH:19]=[CH:18][C:17]([C:20]([F:23])([F:22])[F:21])=[CH:16][CH:15]=3)=[N:12]2)[CH2:40][CH2:39]1

参加物

6

反応物 4

HCID 24436Sodium SulfateHCID 27714081-(2-Chloro-6-nitrophenyl)piperazineHCID 5049666Sodium triacetoxyborohydrideHCID 222938973-[5-Methanesulfonyl-3-(4-trifluoromethyl-phenyl)-4,5,6,7-tetrahydro-pyrazolo[4,3-c]pyridin-1-yl]-propionaldehyde

生成物 1

HCID 179754011-{3-[4-(2-chloro-6-nitro-phenyl)-piperazin-1-yl]-propyl}-5-methanesulfonyl-3-(4-trifluoromethyl-phenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine収率 49%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒2 回

実験手順

To a stirred solution of 3-[5-methanesulfonyl-3-(4-trifluoromethyl-phenyl)-4,5,6,7-tetrahydro-pyrazolo[4,3-c]pyridin-1-yl]-propionaldehyde (0.5 g, 1.25 mmol) and 1-(2-chloro-6-nitrophenyl)-piperazine (0.301 g, 1.25 mmol) in CH2Cl2 (6 mL) was added sodium sulfate (0.354 g, 2.50 mmol) and sodium triacetoxyborohydride (0.396 g, 1.87 mmol). The mixture was allowed to stir at room temperature overnight. The mixture was diluted with CH2Cl2 and washed with water. The CH2Cl2 layer was dried over Na2SO4, and the solvent was removed under reduced pressure. The residue was purified by column chromatography (silica, 10% acetone/CH2Cl2) to afford of 1-{3-[4-(2-chloro-6-nitro-phenyl)-piperazin-1-yl]-propyl}-5-methanesulfonyl-3-(4-trifluoromethyl-phenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine (0.380 g, 49%). MS (electrospray): exact mass calculated for C27H30ClF3N6O4S, 626.2; m/z found, 627.2 [M+H]+. 1H NMR (400 MHz, CDCl3): 7.73 (d, J=8.2 Hz, 2H), 7.66 (d, J=8.2 Hz, 2H), 7.54 (dd, J=8.2, 1.2 Hz, 1H), 7.49 (dd, J=8.2, 1.2 Hz, 1H), 7.10 (t, J=8.2 Hz, 1H), 4.58 (s, 2H), 4.13 (t, J=6.5 Hz, 2H), 3.71 (t, J=5.9 Hz, 2H), 3.01-3.11 (m, 4H), 2.95 (t, J=5.9 Hz, 2H), 2.92 (s, 3H), 2.42-2.53 (m, 4H), 2.40 (t, J=6.5 Hz, 2H), 2.12 (q, J=6.5 Hz, 2H).

後処理

  1. washwashed with water
  2. dry with materialThe CH2Cl2 layer was dried over Na2SO4
  3. customthe solvent was removed under reduced pressure
  4. customThe residue was purified by column chromatography (silica, 10% acetone/CH2Cl2)

出典と根拠

ORDレコード
ord-f5585bc38a7347b6bcba174062048704
出典データセット
uspto-grants-2008_11
特許番号
US07452890B2

反応ノート

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