N-Methylcyclohexylamine → Methyl 4-[4-(N-cyclohexyl-N-methyl-carbamoyl)-5-propylsulfanyl-pyrazol-1-yl]benzoate

HRID 1799384

Reaction equation

HRID 1799384 reaction equation
[CH3:1][O:2][C:3]([C:5]1[CH:10]=[CH:9][C:8]([N:11]2[C:15]([S:16][CH2:17][CH2:18][CH3:19])=[C:14]([C:20]([OH:22])=O)[CH:13]=[N:12]2)=[CH:7][CH:6]=1)=[O:4].[CH3:23][NH:24][CH:25]1[CH2:30][CH2:29][CH2:28][CH2:27][CH2:26]1.C1C=CC2N(O)N=NC=2C=1.CCN(C(C)C)C(C)C.CCN=C=NCCCN(C)C>CN(C=O)C.C(OCC)(=O)C>[CH:25]1([N:24]([CH3:23])[C:20]([C:14]2[CH:13]=[N:12][N:11]([C:8]3[CH:7]=[CH:6][C:5]([C:3]([O:2][CH3:1])=[O:4])=[CH:10][CH:9]=3)[C:15]=2[S:16][CH2:17][CH2:18][CH3:19])=[O:22])[CH2:30][CH2:29][CH2:28][CH2:27][CH2:26]1

Participants

8

Reactant 5

HCID 7514N-MethylcyclohexylamineHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 595161221-(4-Methoxycarbonylphenyl)-5-propylsulfanyl-pyrazole-4-carboxylic acid2×

Product 1

HCID 59516065Methyl 4-[4-(N-cyclohexyl-N-methyl-carbamoyl)-5-propylsulfanyl-pyrazol-1-yl]benzoateYield 78%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

1-(4-methoxycarbonylphenyl)-5-propylsulfanyl-pyrazole-4-carboxylic acid (Intermediate #7), (160 mg, 0.5 mmol), N-methylcyclohexylamine (57 mg, 0.5 mmol), HOBT (81 mg, 0.6 mmol) and DIPEA (174 μL, 1.0 mmol) were dissolved in DMF (5 mL) and treated at ambient temperature with EDCI (115 mg, 0.6 mmol). The mixture was stirred at ambient for 18 h and then diluted with ethyl acetate (50 mL), washed with water (3×20 mL) and brine, dried (MgSO4) and volatiles removed by evaporation. The residue was purified by chromatography on silica gel (12 g silica 0-70% EtOAc/isohexane) to give the title compound as a colourless gum (162 mg, 78%).

Workup

  1. washwashed with water (3×20 mL) and brine
  2. dry with materialdried (MgSO4) and volatiles
  3. customremoved by evaporation
  4. customThe residue was purified by chromatography on silica gel (12 g silica 0-70% EtOAc/isohexane)

Sources & evidence

ORD record
ord-bfd8d77782df4e09865e3c56fa189d07
Source dataset
uspto-grants-2013_01
Patent number
US08344016B2

Linked notes

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