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tert-Butyl 4-((4-aminophenyl)methyl)piperazine-1-carboxylate → Ethyl 4-(4-((4-(tert-butoxycarbonyl)piperazin-1-yl)methyl)phenylamino)-2-chloro-6-methylpyrimidine-5-carboxylate

HRID 1049964
Notes
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Reaction equation

HRID 1049964 reaction equation
[Cl:1][C:2]1[N:7]=[C:6](Cl)[C:5]([C:9]([O:11][CH2:12][CH3:13])=[O:10])=[C:4]([CH3:14])[N:3]=1.[NH2:15][C:16]1[CH:35]=[CH:34][C:19]([CH2:20][N:21]2[CH2:26][CH2:25][N:24]([C:27]([O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[O:28])[CH2:23][CH2:22]2)=[CH:18][CH:17]=1>CN1C(=O)CCC1>[C:30]([O:29][C:27]([N:24]1[CH2:23][CH2:22][N:21]([CH2:20][C:19]2[CH:18]=[CH:17][C:16]([NH:15][C:6]3[C:5]([C:9]([O:11][CH2:12][CH3:13])=[O:10])=[C:4]([CH3:14])[N:3]=[C:2]([Cl:1])[N:7]=3)=[CH:35][CH:34]=2)[CH2:26][CH2:25]1)=[O:28])([CH3:33])([CH3:31])[CH3:32]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 2

HCID 12045001tert-Butyl 4-((4-aminophenyl)methyl)piperazine-1-carboxylateHCID 215179345-Pyrimidinecarboxylic acid, 2,4-dichloro-6-methyl-, ethyl ester

Product 1

HCID 86677021Ethyl 4-(4-((4-(tert-butoxycarbonyl)piperazin-1-yl)methyl)phenylamino)-2-chloro-6-methylpyrimidine-5-carboxylateYield 61.4%

Reagents, catalysts & solvents 1

HCID 13387N-methyl-2-pyrrolidoneSolvent

Conditions

Temperature
0 °C

Procedure

Ethyl 2,4-dichloro-6-methylpyrimidine-5-carboxylate (0.5 g, 2.1 mmol) and tert-butyl 4-(4-aminobenzyl)piperazine-1-carboxylate (0.6 g, 2.06 mmol) were dissolved in NMP and stirred at 0° C. for 2 hour. The reaction mixture was poured onto water and extracted with EtOAc. The organic layer was washed with water, dried over Na2SO4 and evaporated under vacuum to get the desired compound (0.62 g). 1H NMR (400 MHz, CDCl3): δ 10.58 (s, 1H), 7.58 (d, J=6.4 Hz, 2H), 7.31 (d, J=6.4 Hz, 2H), 4.45 (q, J=6.8 Hz, 2H), 3.56 (s, 2H), 3.41 (m, 4H), 2.69 (s, 3H), 2.47 (m, 4H), 1.45 (s, 9H), 1.43 (t, J=6.8 Hz, 3H); MS m/z 490.0 (M+1).

Workup

  1. additionThe reaction mixture was poured onto water
  2. extractionextracted with EtOAc
  3. washThe organic layer was washed with water
  4. dry with materialdried over Na2SO4
  5. customevaporated under vacuum

Sources & evidence

ORD record
ord-09f1fed06f6a4198900bb96fedf2b39e
Source dataset
uspto-grants-2016_07
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09382277B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes