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-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)isonicotinaldehyde

HRID 1411458Notes

Reaction equation

HRID 1411458 reaction equation
Br[C:2]1[CH:9]=[N:8][CH:7]=[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])[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+]>C(#N)C.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[CH2:22][CH2:21][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

7

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 866841693-Bromo-5-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)isonicotinaldehyde

Product 1

HCID 866841703-(1-methyl-5-(5-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-ylamino)-6-oxo-1,6-dihydropyridin-3-yl)-5-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)isonicotinaldehydeYield 40.1%

Reagents, catalysts & solvents 2

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 18373917Acetonitrile--water (1/1)Solvent

Conditions

Temperature
100 °C

Procedure

A sealed tube was charged with 101f (200 mg, 0.53 mmol), 101l (250 mg, 0.53 mmol), PdCl2(dppf) (42 mg, 0.05 mmol), K3PO4 (210 mg, 1.0 mmol), and NaOAc (85 mg, 1.0 mmol) in acetonitrile/H2O (8 mL/1 mL). After three cycles of vacuum/argon flush, the mixture was heated at 100° C. in a sealed tube for 4 h. It was then filtered and the filtrate was evaporated in vacuo. The residue was purified on reverse phase Combi-flash eluting with 20:1 DCM/MeOH to afford 101m (135 mg, 40%). LCMS: [M+H]+ 635.

Workup

  1. customAfter three cycles of vacuum/argon flush
  2. filtrationIt was then filtered
  3. customthe filtrate was evaporated in vacuo
  4. customThe residue was purified on reverse phase Combi-flash
  5. washeluting with 20:1 DCM/MeOH

Sources & evidence

ORD record
ord-96e15f3587d14b108473226437e85b2a
Source dataset
uspto-grants-2014_12
Patent number
US08921353B2

Reaction notes

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