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Diisopropylethylamine → N-(2-Methyl-2-{[5-(trifluoromethyl)pyrazin-2-yl]amino}cyclopentyl)-2-(2H-1,2,3-triazol-2-yl)benzamide

HRID 1750649
Notes
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Reaction equation

HRID 1750649 reaction equation
Cl.[NH2:2][C:3]1([CH3:22])[CH2:7][CH2:6][CH2:5][CH:4]1[NH:8][C:9](=[O:21])[C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=1[N:16]1[N:20]=[CH:19][CH:18]=[N:17]1.Cl[C:24]1[CH:29]=[N:28][C:27]([C:30]([F:33])([F:32])[F:31])=[CH:26][N:25]=1.CCN(C(C)C)C(C)C>CS(C)=O>[CH3:22][C:3]1([NH:2][C:24]2[CH:29]=[N:28][C:27]([C:30]([F:33])([F:32])[F:31])=[CH:26][N:25]=2)[CH2:7][CH2:6][CH2:5][CH:4]1[NH:8][C:9](=[O:21])[C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=1[N:16]1[N:17]=[CH:18][CH:19]=[N:20]1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 189876452-Chloro-5-(trifluoromethyl)pyrazineHCID 118025536N-(2-Amino-2-methylcyclopentyl)-2-(2H-1,2,3-triazol-2-yl)benzamide hydrochloride2×

Product 1

HCID 118308141N-(2-Methyl-2-{[5-(trifluoromethyl)pyrazin-2-yl]amino}cyclopentyl)-2-(2H-1,2,3-triazol-2-yl)benzamide

Reagents, catalysts & solvents 1

HCID 679
Dimethyl Sulfoxide
Solvent

Conditions

Temperature
140 °C

Procedure

To a solution of N-(2-amino-2-methylcyclopentyl)-2-(2H-1,2,3-triazol-2-yl)benzamide hydrochloride (Intermediate 26; 287 mg, 1.01 mmol) in dry DMSO (3.4 ml) was added 2-chloro-5-(trifluoromethyl)pyrazine (CAS number 799557-87-2; 202 mg, 1.11 mmol) and DIPEA (527 μl, 3.02 mmol). The reaction was stirred at 140° C. for 1 hour and was then partitioned between ethyl acetate and water. The organics were washed with water, brine, filtered through a hydrophobic frit and concentrated in vacuo. This was purified by column chromatography (silica, 0-100% ethyl acetate/petrol then 0-20% methanol/ethyl acetate) and was then recrystallised from ethyl acetate to afford the title compound.

Workup

  1. customwas then partitioned between ethyl acetate and water
  2. washThe organics were washed with water, brine
  3. filtrationfiltered through a hydrophobic frit
  4. concentrationconcentrated in vacuo
  5. customThis was purified by column chromatography (silica, 0-100% ethyl acetate/petrol
  6. custom0-20% methanol/ethyl acetate) and was then recrystallised from ethyl acetate

Sources & evidence

ORD record
ord-c5819463f7844d2a82a33a26b01fceb1
Source dataset
uspto-grants-2015_10
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09156829B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes