1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → HCID 178523535, compound

HRID 1178137Notes

Reaction equation

HRID 1178137 reaction equation
CCN(C(C)C)C(C)C.[O:10]1[C:14]2[CH:15]=[CH:16][C:17]([C:19]3[NH:23][N:22]=[C:21]([C:24]([OH:26])=O)[CH:20]=3)=[CH:18][C:13]=2[O:12][CH2:11]1.C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.Cl.[NH2:49][CH2:50][C:51]([N:53]1[CH2:58][CH2:57][N:56]([C:59](=[O:70])[C:60]2[CH:65]=[CH:64][CH:63]=[CH:62][C:61]=2[C:66]([F:69])([F:68])[F:67])[CH2:55][CH2:54]1)=[O:52]>CN(C=O)C.O>[O:52]=[C:51]([N:53]1[CH2:54][CH2:55][N:56]([C:59](=[O:70])[C:60]2[CH:65]=[CH:64][CH:63]=[CH:62][C:61]=2[C:66]([F:69])([F:68])[F:67])[CH2:57][CH2:58]1)[CH2:50][NH:49][C:24]([C:21]1[CH:20]=[C:19]([C:17]2[CH:16]=[CH:15][C:14]3[O:10][CH2:11][O:12][C:13]=3[CH:18]=2)[NH:23][N:22]=1)=[O:26]

Participants

8

Reactant 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 669531782-Amino-1-[4-(2-trifluoromethyl-benzoyl)-piperazin-1-yl]-ethanone hydrochlorideHCID 178524108HCID 178524108, compound

Product 1

HCID 178523535HCID 178523535, compoundYield 95.5%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

DIPEA (77 mg, 0.1 mL, 0.59 mmol) was added to a stirred solution of 5-benzo[1,3]dioxol-5-yl-1H-pyrazole-3-carboxylic acid (60 mg, 0.17 mmol))(prepared by the method as described above) in DMF (2 mL). HOBT (24 mg, 0.17 mmol) and EDCI (34.3 mg, 0.17 mmol) were then added at room temperature. After 2 minutes, 2-amino-1-[4-(2-trifluoromethyl-benzoyl)-piperazin-1-yl]-ethanone hydrochloride salt (60 mg, 0.17 mmol) was added and the resulting mixture was stirred at room temperature overnight. Cold water was then added and the product was extracted with EtOAc and the organic layer was washed with brine. The organic phase was dried over Na2SO4 and concentrated under reduced pressure to afford 86 mg (95% yield) of 5-benzo[1,3]dioxol-5-yl-1H-pyrazole-3-carboxylic acid {2-oxo-2-[4-(2-trifluoromethyl-benzoyl)-piperazin-1-yl]-ethyl}-amide. LCMS Purity: 95.365%. 1H NMR (DMSO-d6): δ 13.6 (s, 1H), 8.0 (s, 1H), 7.7 (m, 2H), 7.6 (m, 1H), 7.5 (m, 1H), 7.3 (m, 2H), 7.0 (m, 2H), 6.0 (s, 2H), 4.1 (m, 2H), 3.7 (m, 2H), 3.54 (m, 2H), 3.4 (m, 2H), 3.1 (m, 2H).

Workup

  1. extractionthe product was extracted with EtOAc
  2. washthe organic layer was washed with brine
  3. dry with materialThe organic phase was dried over Na2SO4
  4. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-4ec6abe6afde4d67a93ba222803931c6
Source dataset
uspto-grants-2010_11
Patent number
US07842696B2

Reaction notes

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