Potassium Hydroxide → (R)-Methyl 5-((5-((4-methylpiperazin-1-yl)methyl)-2-nitrophenyl)amino)-3-(1-(2-(trifluoromethyl)phenyl)ethoxy)thiophene-2-carboxylate

HRID 883574ノート

反応式

HRID 883574 の反応式
F[C:2]1[CH:3]=[C:4]([CH2:11][N:12]2[CH2:17][CH2:16][N:15]([CH3:18])[CH2:14][CH2:13]2)[CH:5]=[CH:6][C:7]=1[N+:8]([O-:10])=[O:9].[NH2:19][C:20]1[S:24][C:23]([C:25]([O:27][CH3:28])=[O:26])=[C:22]([O:29][C@@H:30]([C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][C:33]=2[C:38]([F:41])([F:40])[F:39])[CH3:31])[CH:21]=1.[OH-].[K+]>C(#N)C>[CH3:18][N:15]1[CH2:16][CH2:17][N:12]([CH2:11][C:4]2[CH:5]=[CH:6][C:7]([N+:8]([O-:10])=[O:9])=[C:2]([NH:19][C:20]3[S:24][C:23]([C:25]([O:27][CH3:28])=[O:26])=[C:22]([O:29][C@@H:30]([C:32]4[CH:37]=[CH:36][CH:35]=[CH:34][C:33]=4[C:38]([F:41])([F:39])[F:40])[CH3:31])[CH:21]=3)[CH:3]=2)[CH2:13][CH2:14]1

参加物

5

反応物 3

HCID 14797Potassium HydroxideHCID 25111423(R)-Methyl 5-amino-3-(1-(2-(trifluoromethyl)phenyl)ethoxy)thiophene-2-carboxylateHCID 575389431-(3-Fluoro-4-nitrobenzyl)-4-methylpiperazine

生成物 1

HCID 44185548(R)-Methyl 5-((5-((4-methylpiperazin-1-yl)methyl)-2-nitrophenyl)amino)-3-(1-(2-(trifluoromethyl)phenyl)ethoxy)thiophene-2-carboxylate収率 50.7%

試薬・触媒・溶媒 1

HCID 6342Acetonitrile溶媒2 回

実験手順

A solution of 1-[(3-fluoro-4-nitrophenyl)methyl]-4-methylpiperazine (0.733 g, 2.90 mmol) in acetonitrile (5 mL) was added dropwise to a mixture of methyl 5-amino-3-({(1R)-1-[2-(trifluoromethyl)phenyl]ethyl}oxy)-2-thiophenecarboxylate (1.00 g, 2.90 mmol) and KOH (0.325 g, 5.79 mmol) in acetonitrile (10 mL) at 0° C. The reaction mixture was allowed to warm to room temperature overnight and then heated to 40° C. for 1 h until analysis by HPLC showed complete consumption of starting materials. The reaction mixture was partitioned between EtOAc (50 mL) and H2O (50 mL). The organic layer was washed with saturated aqueous NaHCO3 (10 mL), concentrated under reduced pressure and then purified by flash column chromatography (DCM:MeOH 98:2 to 85:15, then EtOAC:MeOH 99:1 to 85:15) to give the title compound (0.85 g, 50%) as a red amorphous solid.

後処理

  1. temperatureheated to 40° C. for 1 h until analysis by HPLC
  2. customconsumption of starting materials
  3. customThe reaction mixture was partitioned between EtOAc (50 mL) and H2O (50 mL)
  4. washThe organic layer was washed with saturated aqueous NaHCO3 (10 mL)
  5. concentrationconcentrated under reduced pressure
  6. custompurified by flash column chromatography (DCM:MeOH 98:2 to 85:15

出典と根拠

ORDレコード
ord-e2412f1094ed471c8274443eb6654c78
出典データセット
uspto-grants-2012_08
特許番号
US08236954B2

反応ノート

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