Acetic Acid → (3,5-Bis-trifluoromethyl-benzyl)-[2-(4-cyclohexylmethyl-piperazin-1-yl)-quinolin-3-ylmethyl]-amine

HRID 577780

Reaction equation

HRID 577780 reaction equation
[F:1][C:2]([F:16])([F:15])[C:3]1[CH:4]=[C:5]([CH:8]=[C:9]([C:11]([F:14])([F:13])[F:12])[CH:10]=1)[CH2:6][NH2:7].[CH:17]1([CH2:23][N:24]2[CH2:29][CH2:28][N:27]([C:30]3[C:39]([CH:40]=O)=[CH:38][C:37]4[C:32](=[CH:33][CH:34]=[CH:35][CH:36]=4)[N:31]=3)[CH2:26][CH2:25]2)[CH2:22][CH2:21][CH2:20][CH2:19][CH2:18]1.C(O)(=O)C.C([BH3-])#N.[Na+]>CO>[F:1][C:2]([F:15])([F:16])[C:3]1[CH:4]=[C:5]([CH:8]=[C:9]([C:11]([F:14])([F:12])[F:13])[CH:10]=1)[CH2:6][NH:7][CH2:40][C:39]1[C:30]([N:27]2[CH2:26][CH2:25][N:24]([CH2:23][CH:17]3[CH2:22][CH2:21][CH2:20][CH2:19][CH2:18]3)[CH2:29][CH2:28]2)=[N:31][C:32]2[C:37]([CH:38]=1)=[CH:36][CH:35]=[CH:34][CH:33]=2

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 5210993,5-Bis(trifluoromethyl)benzylamineHCID 5003444Sodium cyanoborohydrideHCID 574868172-[4-(Cyclohexylmethyl)piperazin-1-yl]quinoline-3-carbaldehyde

Product 1

HCID 57486818(3,5-Bis-trifluoromethyl-benzyl)-[2-(4-cyclohexylmethyl-piperazin-1-yl)-quinolin-3-ylmethyl]-amineYield 67.4%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

3,5-Bis(trifluoromethyl)benzylamine (0.305 g, 1.25 mmol) was added to a solution of 2-(4-cyclohexylmethyl-piperazin-1-yl)-quinoline-3-carbaldehyde (0.4 g, 1.23 mmol) in methanol followed by acetic acid (0.15 mL) at ambient temperature under nitrogen atmosphere. After stirring 1 h, sodium cyanoborohydride (0.237 g, 3.77 mmol) was added carefully, and the reaction was stirred at RT for overnight. The reaction mixture was evaporated to dryness, and water (30 mL) and ethyl acetate (30 mL) were added to the residue, and this was then extracted with ethyl acetate (2×30 mL). The combined organic phases were washed with brine, dried over sodium sulfate, filtered, and concentrated under vacuum to afford a pale yellow crude product. Purification by silica gel column chromatography and eluting with 2.5% methanol/dichloromethane afforded the title compound (0.468 g), yield: 67%.

Workup

  1. stirringthe reaction was stirred at RT for overnight
  2. customThe reaction mixture was evaporated to dryness, and water (30 mL) and ethyl acetate (30 mL)
  3. additionwere added to the residue
  4. extractionthis was then extracted with ethyl acetate (2×30 mL)
  5. washThe combined organic phases were washed with brine
  6. dry with materialdried over sodium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated under vacuum
  9. customto afford a pale yellow crude product
  10. customPurification by silica gel column chromatography
  11. washeluting with 2.5% methanol/dichloromethane

Sources & evidence

ORD record
ord-0a27e504c95b4d2dbe2f0f4bb93f117c
Source dataset
uspto-grants-2015_05
Patent number
US09040558B2

Linked notes

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