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

HRID 592628Notes

Reaction equation

HRID 592628 reaction equation
Br[C:2]1[CH:9]=[N:8][CH:7]=[C:6]([N:10]2[CH:22]=[CH: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])[C:3]=1[CH:4]=[O:5].[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+].CC([O-])=O.[Na+]>CC#N.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[CH:9]=[N:8][CH:7]=[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])[C:3]=2[CH:4]=[O:5])=[CH:30]1

Participants

8

Reactant 4

HCID 62657Potassium Phosphate, TribasicHCID 517045Sodium AcetateHCID 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 866842233-Bromo-5-(1-oxo-6,7,8,9-tetrahydropyrazino[1,2-a]indol-2(1H)-yl)isonicotinaldehyde

Product 1

HCID 866842243-(1-Methyl-5-(5-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-ylamino)-6-oxo-1,6-dihydropyridin-3-yl)-5-(1-oxo-6,7,8,9-tetrahydropyrazino[1,2-a]indol-2(1H)-yl)isonicotinaldehydeYield 48%

Reagents, catalysts & solvents 3

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 962WaterSolventHCID 6342AcetonitrileSolvent

Conditions

Temperature
100 °C

Procedure

A sealed tube was charged with 126a (100 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), and NaOAc (20 mg) in CH3CN (5 mL) and H2O (1 mL). The system was evacuated and refilled with N2. The reaction mixture was heated at 100° C. for 2 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 126b (80 mg, 48%) as a yellow solid. MS: [M+H]+ 633.

Workup

  1. customThe system was evacuated
  2. additionrefilled with N2
  3. temperaturecooled to room temperature
  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-565529dcd8da490b918fb7d0aa1d1067
Source dataset
uspto-grants-2016_01
Patent number
US09238655B2

Reaction notes

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