Potassium Phosphate, Tribasic → 4-(1-Methyl-5-(5-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-ylamino)-6-oxo-1,6-dihydropyridin-3-yl)-2-(1-oxo-6,7,8,9-tetrahydropyrazino[1,2-a]indol-2(1H)-yl)nicotinaldehyde

HRID 1021664Notes

Reaction equation

HRID 1021664 reaction equation
Cl[C:2]1[C:7]([CH:8]=[O:9])=[C:6]([N:10]2[CH2:22][CH2:21][N:13]3[C:14]4[CH2:15][CH2:16][CH2:17][CH2:18][C:19]=4[CH:20]=[C:12]3[C:11]2=[O:23])[N:5]=[CH:4][CH:3]=1.[CH3:24][N:25]1[CH:30]=[C:29](B2OC(C)(C)C(C)(C)O2)[CH:28]=[C:27]([NH:40][C:41]2[CH:46]=[CH:45][C:44]([N:47]3[CH2:52][CH2:51][N:50]([CH:53]4[CH2:56][O:55][CH2:54]4)[CH2:49][CH2:48]3)=[CH:43][N:42]=2)[C:26]1=[O:57].[O-]P([O-])([O-])=O.[K+].[K+].[K+]>C1COCC1.O.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[CH3:24][N:25]1[C:26](=[O:57])[C:27]([NH:40][C:41]2[CH:46]=[CH:45][C:44]([N:47]3[CH2:52][CH2:51][N:50]([CH:53]4[CH2:54][O:55][CH2:56]4)[CH2:49][CH2:48]3)=[CH:43][N:42]=2)=[CH:28][C:29]([C:2]2[C:7]([CH:8]=[O:9])=[C:6]([N:10]3[CH:22]=[CH:21][N:13]4[C:14]5[CH2:15][CH2:16][CH2:17][CH2:18][C:19]=5[CH:20]=[C:12]4[C:11]3=[O:23])[N:5]=[CH:4][CH:3]=2)=[CH:30]1

Participants

7

Reactant 3

HCID 62657Potassium Phosphate, TribasicHCID 866839131-methyl-3-(5-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-ylamino)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-2(1H)-oneHCID 866841404-Chloro-2-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)nicotinaldehyde

Product 1

HCID 866842114-(1-Methyl-5-(5-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-ylamino)-6-oxo-1,6-dihydropyridin-3-yl)-2-(1-oxo-6,7,8,9-tetrahydropyrazino[1,2-a]indol-2(1H)-yl)nicotinaldehydeYield 56%

Reagents, catalysts & solvents 3

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

A flask was charged with 4-chloro-2-(1-oxo-6,7,8,9-tetrahydropyrazino[1,2-a]indol-2(1H)-yl)nicotinaldehyde 103b (88 mg, 0.27 mmol), 1-methyl-3-(5-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-ylamino)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2(1H)-one 101l (125 mg, 0.27 mmol), PdCl2(dppf) (18 mg, 0.02 mmol), K3PO4 (30 mg), in THF (5 mL) and H2O (1 mL). The system was evacuated and refilled with N2. The reaction mixture was refluxed for 4 h, and then cooled to room temperature. It was then filtered and the filtrate was concentrated under reduced pressure. The resulting residue was purified by flash column chromatography eluting with 10:1 of DCM/MeOH to afford 121a (90 mg, 56%) as a yellow solid. MS: [M+H]+ 633.

Workup

  1. customThe system was evacuated
  2. additionrefilled with N2
  3. temperatureThe reaction mixture was refluxed for 4 h
  4. filtrationIt was then filtered
  5. concentrationthe filtrate was concentrated under reduced pressure
  6. customThe resulting residue was purified by flash column chromatography
  7. washeluting with 10:1 of DCM/MeOH

Sources & evidence

ORD record
ord-251ca673c55a4108967eb16b0aa276fe
Source dataset
uspto-grants-2014_05
Patent number
US08716274B2

Reaction notes

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