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Diisopropylethylamine → N-(3-(isoquinolin-3-yl)-4-methylphenyl)-5,6,7,8-tetrahydro-2,6-naphthyridin-1-amine

HRID 1505068
Notes
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Reaction equation

HRID 1505068 reaction equation
C([N:8]1[CH2:17][CH2:16][C:15]2[C:14]([NH:18][C:19]3[CH:24]=[CH:23][C:22]([CH3:25])=[C:21]([C:26]4[N:27]=[CH:28][C:29]5[C:34]([CH:35]=4)=[CH:33][CH:32]=[CH:31][CH:30]=5)[CH:20]=3)=[N:13][CH:12]=[CH:11][C:10]=2[CH2:9]1)C1C=CC=CC=1.CCN(C(C)C)C(C)C.C(Cl)(=O)OC(Cl)C>ClC(Cl)C>[CH:28]1[C:29]2[C:34](=[CH:33][CH:32]=[CH:31][CH:30]=2)[CH:35]=[C:26]([C:21]2[CH:20]=[C:19]([NH:18][C:14]3[C:15]4[CH2:16][CH2:17][NH:8][CH2:9][C:10]=4[CH:11]=[CH:12][N:13]=3)[CH:24]=[CH:23][C:22]=2[CH3:25])[N:27]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 5213051-Chloroethyl chloroformateHCID 583180566-benzyl-N-(3-(isoquinolin-3-yl)-4-methylphenyl)-5,6,7,8-tetrahydro-2,6-naphthyridin-1-amine

Product 1

HCID 58317905N-(3-(isoquinolin-3-yl)-4-methylphenyl)-5,6,7,8-tetrahydro-2,6-naphthyridin-1-amine

Reagents, catalysts & solvents 1

HCID 6365
1,1-Dichloroethane
Solvent

Conditions

Temperature
90 °C

Procedure

To a solution of 6-benzyl-N-(3-(isoquinolin-3-yl)-4-methylphenyl)-5,6,7,8-tetrahydro-2,6-naphthyridin-1-amine (320 mg, 0.7 mmol) in dichloroethane is added DIEA (225 mg, 1.75 mmol) and 1-chloroethyl carbonochloridate (200 mg, 1.4 mmol). The reaction mixture is stirred at 90° C. for 12 hours. After cooling, the solvent is removed by rotary evaporation. The residue is redissolved in 20 ml of methanol and stirred at room temperature for 15 hours. After removing solvent, the crude product is purified by silica gel flash chromatography, eluted with 5% methanol in ethyl acetate to afford N-(3-(isoquinolin-3-yl)-4-methylphenyl)-5,6,7,8-tetrahydro-2,6-naphthyridin-1-amine as a light yellow solid. MS m/z 367.2 (M+1).

Workup

  1. temperatureAfter cooling
  2. customthe solvent is removed by rotary evaporation
  3. dissolutionThe residue is redissolved in 20 ml of methanol
  4. stirringstirred at room temperature for 15 hours
  5. customAfter removing solvent
  6. customthe crude product is purified by silica gel flash chromatography
  7. washeluted with 5% methanol in ethyl acetate

Sources & evidence

ORD record
ord-58b036fa0aa64a22b97ad7a8b0473750
Source dataset
uspto-grants-2015_12
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09216964B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes