1-Hydroxybenzotriazole → HCID 178523511, compound

HRID 1093734Notes

Reaction equation

HRID 1093734 reaction equation
CCN(C(C)C)C(C)C.[OH:10][C:11]1[CH:12]=[C:13]([C:17]2[NH:21][N:20]=[C:19]([C:22]([OH:24])=O)[CH:18]=2)[CH:14]=[CH:15][CH:16]=1.C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.Cl.Cl.[NH2:48][CH2:49][C:50]([N:52]1[CH2:57][CH2:56][CH:55]([O:58][C:59]2[CH:64]=[CH:63][CH:62]=[C:61]([C:65]([F:68])([F:67])[F:66])[CH:60]=2)[CH2:54][CH2:53]1)=[O:51]>CN(C=O)C.O>[O:51]=[C:50]([N:52]1[CH2:53][CH2:54][CH:55]([O:58][C:59]2[CH:64]=[CH:63][CH:62]=[C:61]([C:65]([F:68])([F:66])[F:67])[CH:60]=2)[CH2:56][CH2:57]1)[CH2:49][NH:48][C:22]([C:19]1[CH:18]=[C:17]([C:13]2[CH:14]=[CH:15][CH:16]=[C:11]([OH:10])[CH:12]=2)[NH:21][N:20]=1)=[O:24]

Participants

8

Reactant 5

HCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 665915472-Amino-1-[4-(3-trifluoromethyl-phenoxy)-piperidin-1-yl]-ethanone hydrochlorideHCID 178524124HCID 178524124, compound

Product 1

HCID 178523511HCID 178523511, compoundYield 51.7%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

DIPEA (133 mg, 1.03 mmol) was added to a stirred solution of 5-(3-hydroxy-phenyl)-1H-pyrazole-3-carboxylic acid (60 mg, 0.294 mmol) (prepared from 5-(3-benzyloxy-phenyl)-1H-pyrazole-3-carboxylic acid ethyl ester) in DMF (2 mL) followed by HOBt (41.7 mg, 0.308 mmol) and EDCI.HCl (59 mg, 0.308 mmol). After 2 minutes 2-amino-1-[4-(3-trifluoromethyl-phenoxy)-piperidin-1-yl]-ethanone hydrochloride (prepared according to Step 1 and 5 of the General Scheme) (99 mg, 0.294 mmol) was added to the reaction mixture and stirring was continued at ambient temperature overnight. The reaction mixture was diluted with cold water, extracted with ethyl acetate and dried over sodium sulfate. The organic layer was concentrated under reduced pressure to afford the residue. Washing with ethyl acetate afforded 74 mg (51.7% Yield) of 5-(3-hydroxy-phenyl)-1H-pyrazole-3-carboxylic acid {2-oxo-2-[4-(3-trifluoromethyl-phenoxy)-piperidin-1-yl]-ethyl}-amide. LC/MS [M+H]+: 489, 96%. 1H NMR (300 MHz, DMSO-d6): δ13.6 (s, 1H), 9.6 (s, 1H), 8.0 (t, 1H), 7.5 (t, 1H), 7.1 (m, 7H), 6.9 (d, 1H), 6.8 (m, 1H), 4.8 (m, 1H), 4.2 (d, 2H), 3.9 (m, 1H), 3.7 (m, 1H), 3.4 (m, 2H), 2.0 (m, 2H), 1.6 (m, 2H).

Workup

  1. additionwas added to the reaction mixture
  2. extractionextracted with ethyl acetate
  3. dry with materialdried over sodium sulfate
  4. concentrationThe organic layer was concentrated under reduced pressure
  5. customto afford the residue
  6. washWashing with ethyl acetate

Sources & evidence

ORD record
ord-6ca91a66769c4afab11152e3ad09defb
Source dataset
uspto-grants-2012_03
Patent number
US08129376B2

Reaction notes

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