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Triethylamine → Tert-butyl 4-(4-((4-((3-carbamoylphenyl)ethynyl)-5-(trifluoromethyl)pyrimidin-2-yl)amino)-3-methoxyphenyl)piperidine-1-carboxylate

HRID 705755
Notes
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Reaction equation

HRID 705755 reaction equation
Cl[C:2]1[C:7]([C:8]([F:11])([F:10])[F:9])=[CH:6][N:5]=[C:4]([NH:12][C:13]2[CH:18]=[CH:17][C:16]([CH:19]3[CH2:24][CH2:23][N:22]([C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])[CH2:21][CH2:20]3)=[CH:15][C:14]=2[O:32][CH3:33])[N:3]=1.[C:34]([C:36]1[CH:37]=[C:38]([CH:42]=[CH:43][CH:44]=1)[C:39]([NH2:41])=[O:40])#[CH:35].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C(N(CC)CC)C>CN(C=O)C.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.[Cu]I>[C:39]([C:38]1[CH:37]=[C:36]([C:34]#[C:35][C:2]2[C:7]([C:8]([F:11])([F:10])[F:9])=[CH:6][N:5]=[C:4]([NH:12][C:13]3[CH:18]=[CH:17][C:16]([CH:19]4[CH2:24][CH2:23][N:22]([C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])[CH2:21][CH2:20]4)=[CH:15][C:14]=3[O:32][CH3:33])[N:3]=2)[CH:44]=[CH:43][CH:42]=1)(=[O:40])[NH2:41]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

8

Reactant 4

HCID 8471TriethylamineHCID 11776TriphenylphosphineHCID 120650003-Ethynylbenzamide2×HCID 86675841tert-Butyl 4-(4-((4-chloro-5-(trifluoromethyl)pyrimidin-2-yl)amino)-3-methoxyphenyl)piperidine-1-carboxylate

Product 1

HCID 71225437Tert-butyl 4-(4-((4-((3-carbamoylphenyl)ethynyl)-5-(trifluoromethyl)pyrimidin-2-yl)amino)-3-methoxyphenyl)piperidine-1-carboxylate
Yield 61.3%

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418476HCID 178418476, compoundCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
120 °C

Procedure

To a mixture of tert-butyl 4-(4-((4-chloro-5-(trifluoromethyl)pyrimidin-2-yl)amino)-3-methoxyphenyl)piperidine-1-carboxylate (I34) (0.098 g, 0.20 mmol), 3-ethynylbenzamide (I31) (0.038 g, 0.26 mmol), PdCl2(PPh3)2 (9 mg, 0.01 mmol), triphenylphosphine (0.010 g, 0.04 mmol) and copper(I) iodide (0.009 g, 0.05 mmol) in DMF (2 mL), that had been degassed with nitrogen for 10 minutes, was added triethylamine (0.090 mL, 0.65 mmol). The mixture was degassed with nitrogen then heated to 120° C. for 25 minutes under microwave irradiation. On cooling to room temperature the resulting mixture was left overnight, then an additional portion of 3-ethynylbenzamide (I26) (0.047 g, 0.32 mmol) was added. After degassing with nitrogen the reaction was heated at 120° C. for 25 minutes under microwave irradiation. The volatiles were evaporated under reduced pressure and the residue purified using silica gel column chromatography (20-70% EtOAc/petroleum benzine 40-60° C.) to give the title compound (I35) (0.073 g, 61%) as a yellow solid; 1H NMR (400 MHz, CDCl3) δ 8.66 (s, 1H), 8.35 (d, J=8.3 Hz, 1H), 8.04 (dd, J=1.4, 1.4 Hz, 1H), 8.02 (s, 1H), 7.93 (ddd, J=7.9, 1.8, 1.2 Hz, 1H), 7.80 (m, 1H), 7.53 (m, 1H), 6.88 (dd, J=8.3, 1.6 Hz, 1H), 6.76 (d, J=1.8 Hz, 1H), 4.27 (m, 2H), 3.91 (s, 3H), 2.81 (m, J=12.2 Hz, 2H), 2.64 (tt, J=12.2, 3.4 Hz, 1H), 1.84 (m, 2H), 1.65 (m, 2H), 1.49 (s, 9H). LCMS Method C: rt 6.59 min; m/z 496.1 [(M-Boc)+H]+, 540.0 [(M-t-Bu)+H]+.

Workup

  1. customhad been degassed with nitrogen for 10 minutes
  2. customThe mixture was degassed with nitrogen
  3. temperatureOn cooling to room temperature the resulting mixture
  4. customAfter degassing with nitrogen the reaction
  5. temperaturewas heated at 120° C. for 25 minutes under microwave irradiation
  6. customThe volatiles were evaporated under reduced pressure
  7. customthe residue purified
  8. customsilica gel column chromatography (20-70% EtOAc/petroleum benzine 40-60° C.)

Sources & evidence

ORD record
ord-8aff74749ad3482c8dc1788705ad4084
Source dataset
uspto-grants-2015_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09174946B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes