Triethylamine → tert-Butyl 4-(4-((4-((2-(2-amino-2-oxoethyl)-4-fluorophenyl)ethynyl)-5-(trifluoromethyl)pyrimidin-2-yl)amino)phenyl)piperidine-1-carboxylate

HRID 1778992Notes

Reaction equation

HRID 1778992 reaction equation
[C:1]([C:3]1[CH:8]=[CH:7][C:6]([F:9])=[CH:5][C:4]=1[CH2:10][C:11]([NH2:13])=[O:12])#[CH:2].Cl[C:15]1[C:20]([C:21]([F:24])([F:23])[F:22])=[CH:19][N:18]=[C:17]([NH:25][C:26]2[CH:31]=[CH:30][C:29]([CH:32]3[CH2:37][CH2:36][N:35]([C:38]([O:40][C:41]([CH3:44])([CH3:43])[CH3:42])=[O:39])[CH2:34][CH2:33]3)=[CH:28][CH:27]=2)[N:16]=1.F[B-](F)(F)F.CCN(CC)CC>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>[NH2:13][C:11](=[O:12])[CH2:10][C:4]1[CH:5]=[C:6]([F:9])[CH:7]=[CH:8][C:3]=1[C:1]#[C:2][C:19]1[C:20]([C:21]([F:22])([F:23])[F:24])=[CH:15][N:16]=[C:17]([NH:25][C:26]2[CH:31]=[CH:30][C:29]([CH:32]3[CH2:33][CH2:34][N:35]([C:38]([O:40][C:41]([CH3:44])([CH3:43])[CH3:42])=[O:39])[CH2:36][CH2:37]3)=[CH:28][CH:27]=2)[N:18]=1

Participants

8

Reactant 4

HCID 8471TriethylamineHCID 26255TetrafluoroborateHCID 86675716Tert-butyl 4-(4-((4-chloro-5-(trifluoromethyl)pyrimidin-2-yl)amino)phenyl)piperidine-1-carboxylateHCID 86712654HCID 86712654, compound

Product 1

HCID 86712655tert-Butyl 4-(4-((4-((2-(2-amino-2-oxoethyl)-4-fluorophenyl)ethynyl)-5-(trifluoromethyl)pyrimidin-2-yl)amino)phenyl)piperidine-1-carboxylate

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

A suspension of 2-(2-ethynyl-5-fluorophenyl)acetamide (A35) (0.114 g, 0.643 mmol), tert-butyl 4-(4-((4-chloro-5-(trifluoromethyl)pyrimidin-2-yl)amino)phenyl)piperidine-1-carboxylate (K5) (0.267 g, 0.585 mmol), PdCl2(PPh3)2 (0.021 g, 0.029 mmol), t-Bu3PH.BF4 (8 mg, 0.03 mmol) and CuI (6 mg, 0.03 mmol) in anhydrous DMF (4 mL) was degassed with nitrogen for 10 minutes. Et3N (1 mL) was added and the resulting mixture was heated under microwave irradiation at 120° C. for 20 minutes. The volatiles were removed under reduced pressure, then the residue adsorbed onto silica gel and purified by column chromatography (Biotage Isolera, SiO2 cartridge, 0-100% EtOAc in petroleum benzine 40-60° C.) to give the title compound A36 as a yellow solid (0.198 g, 57%); 1H NMR (400 MHz, d6-DMSO) δ 10.41 (s, 1H), 8.81 (s, 1H), 7.69-7.62 (m, 3H), 7.47 (s, 1H), 7.31-7.19 (m, 4H), 7.07 (s, 1H), 4.05 (s, 2H), 3.72 (s, 2H), 2.80 (s, 2H), 2.69-2.59 (m, 1H), 1.74 (d, J=13.5 Hz, 2H), 1.55-1.44 (m, 2H), 1.42 (s, 9H). LCMS-A: rt 6.554 min; m/z 596 [M−H]−.

Workup

  1. customThe volatiles were removed under reduced pressure
  2. custompurified by column chromatography (Biotage Isolera, SiO2 cartridge, 0-100% EtOAc in petroleum benzine 40-60° C.)

Sources & evidence

ORD record
ord-72825dabc3d249d89a4ba480296621a3
Source dataset
uspto-grants-2016_02
Patent number
US09266864B2

Reaction notes

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