Cesium carbonate → HCID 16063829, compound

HRID 421285Notes

Reaction equation

HRID 421285 reaction equation
[CH2:1]1[NH:6][C@@H:5]([CH2:7][OH:8])[CH2:4][N:3]2[CH2:9][CH2:10][CH2:11][C@H:2]12.[F:12][C:13]([F:47])([F:46])[C:14]1[CH:15]=[C:16]([C:24]([CH3:45])([CH3:44])[C:25]([N:27]([C:29]2[CH:30]=[N:31][C:32](Cl)=[CH:33][C:34]=2[C:35]2[CH:40]=[CH:39][C:38]([F:41])=[CH:37][C:36]=2[CH3:42])[CH3:28])=[O:26])[CH:17]=[C:18]([C:20]([F:23])([F:22])[F:21])[CH:19]=1.C1(P(C2CCCCC2)C2C=CC=CC=2C2C=CC=CC=2N(C)C)CCCCC1.C(=O)([O-])[O-].[Cs+].[Cs+]>C1(C)C=CC=CC=1.CO.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd]>[F:23][C:20]([F:21])([F:22])[C:18]1[CH:17]=[C:16]([C:24]([CH3:45])([CH3:44])[C:25]([N:27]([C:29]2[CH:30]=[N:31][C:32]([N:6]3[C@@H:5]([CH2:7][OH:8])[CH2:4][N:3]4[CH2:9][CH2:10][CH2:11][C@@H:2]4[CH2:1]3)=[CH:33][C:34]=2[C:35]2[CH:40]=[CH:39][C:38]([F:41])=[CH:37][C:36]=2[CH3:42])[CH3:28])=[O:26])[CH:15]=[C:14]([C:13]([F:47])([F:12])[F:46])[CH:19]=1

Participants

8

Reactant 4

HCID 10796Cesium carbonateHCID 27342172-(Dicyclohexylphosphino)-2'-(dimethylamino)biphenylHCID 235027842-(3,5-Bis(trifluoromethyl)phenyl)-N-(6-chloro-4-(4-fluoro-2-methylphenyl)pyrid-3-yl)-N,2-dimethylpropanamideHCID 68602826HCID 68602826, compound

Product 1

HCID 16063829HCID 16063829, compoundYield 7.3%

Reagents, catalysts & solvents 3

HCID 6505921(1E,4E)-1,5-diphenylpenta-1,4-dien-3-one; palladiumCatalyst2×HCID 887MethanolSolventHCID 1140TolueneSolvent

Conditions

Temperature
130 °C

Procedure

(3R,8aR)-octahydropyrrolo[1,2-a]pyrazin-3-ylmethanol (190 mg, 1.22 mmol, Tetrahedron Asymmetry, 1996, 7(7), 1999-2005) was dissolved in 10 mL of toluene, followed by the 2-[3,5-bis(trifluoromethyl)phenyl]-N-[6-chloro-4-(4-fluoro-2-methylphenyl)-3-pyridinyl]-N,2-dimethylpropanamide [WO 2005/002577] (323 mg, 0.607 mmol), 2-dicyclohexylphosphino-2′-(N,N-dimethylamino)biphenyl (ligand) (57 mg, 0.144 mmol), Pd(dba)2 (35 mg, 0.061 mmol) and, at last, cesium carbonate (297 mg, 0.912 mmol). The mixture was stirred at 130° C. After 3.5 h, more ligand (55 mg, 0.139 mmol) and Pd(dba)2 (35 mg, 0.061 mmol) were added and the reaction left overnight. It was let cool down to room temperature, diluted with 10 mL of MeOH, loaded on a 10 g SCX column, washed with MeOH and eluted with 1M methanolic ammonia. The sample coming from the SCX column was further purified by flash chromatography: 1st column: silica, cyclohexane:EtOAc 50:50 to 0:100; 2nd column, NH2-modified silica, cyclohexane:EtOAc 100:0 to 0:100. Isolated 29 mg of the target material.

Workup

  1. waitthe reaction left overnight
  2. temperatureIt was let cool down to room temperature
  3. washwashed with MeOH
  4. washeluted with 1M methanolic ammonia
  5. customwas further purified by flash chromatography

Sources & evidence

ORD record
ord-aad606d96cdd408c8ce61b08ece22c8b
Source dataset
uspto-grants-2012_01
Patent number
US08097618B2

Reaction notes

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