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N,N-Diethyl-2-propanamine → (S)-N-(1-([1,2,4]triazolo[4,3-a]pyrazin-8-yl)pyrrolidin-3-yl)-5-isopropylpyrimidine-2-carboxamide

HRID 1755265
Notes
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Reaction equation

HRID 1755265 reaction equation
Cl.[N:2]1[N:3]=[CH:4][N:5]2[CH:10]=[CH:9][N:8]=[C:7]([N:11]3[CH2:15][CH2:14][C@H:13]([NH2:16])[CH2:12]3)[C:6]=12.[CH:17]([C:20]1[CH:21]=[N:22][C:23]([C:26](O)=[O:27])=[N:24][CH:25]=1)([CH3:19])[CH3:18].C(N(CC)C(C)C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>CN(C=O)C.C(OCC)(=O)C>[N:2]1[N:3]=[CH:4][N:5]2[CH:10]=[CH:9][N:8]=[C:7]([N:11]3[CH2:15][CH2:14][C@H:13]([NH:16][C:26]([C:23]4[N:22]=[CH:21][C:20]([CH:17]([CH3:19])[CH3:18])=[CH:25][N:24]=4)=[O:27])[CH2:12]3)[C:6]=12
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 521913N,N-Diethyl-2-propanamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 839144005-Isopropylpyrimidine-2-carboxylic acidHCID 86720539(S)-1-([1,2,4]triazolo[4,3-a]pyrazin-8-yl)pyrrolidin-3-amine hydrochloride salt

Product 1

HCID 75202557
(S)-N-(1-([1,2,4]triazolo[4,3-a]pyrazin-8-yl)pyrrolidin-3-yl)-5-isopropylpyrimidine-2-carboxamide
Yield 5.7%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a suspension of =(S)-1-([1,2,4]triazolo[4,3-a]pyrazin-8-yl)pyrrolidin-3-amine hydrochloride salt (84 mg, 0.3 mmol), 5-isopropylpyrimidine-2-carboxylic acid (51 mg, 0.3 mmol) in DMF (5 mL) was added diethylisopropyl amine (650 mg, 5 mmol), followed by HATU (120 mg, 0.31 mmol). The resulting solution was stirred at room temperature for 1 h. The reaction mixture was diluted with ethyl acetate and washed with saturated aqueous solutions of KH2PO4 and NaHCO3, followed by brine. The organic layer was concentrated in vacuo and the residue purified by reverse phase HPLC (acetonitrile-H2O with 0.1% TFA as eluent) to give 6 mg of the title compound (5% yield) as a white solid. MS: (ES) m/z found 353.1.

Workup

  1. washwashed with saturated aqueous solutions of KH2PO4 and NaHCO3
  2. concentrationThe organic layer was concentrated in vacuo
  3. customthe residue purified by reverse phase HPLC (acetonitrile-H2O with 0.1% TFA as eluent)

Sources & evidence

ORD record
ord-9a548886078243f089d2b55f3a20db24
Source dataset
uspto-grants-2015_10
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09169261B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes