Potassium Phosphate, Tribasic → (4-(1-Methyl-5-(5-methyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazin-2-ylamino)-6-oxo-1,6-dihydropyridin-3-yl)-2-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)pyridin-3-yl)methyl acetate

HRID 592576Notes

Reaction equation

HRID 592576 reaction equation
Br[C:2]1[CH:3]=[C:4]([NH:10][C:11]2[CH:20]=[C:14]3[CH2:15][N:16]([CH3:19])[CH2:17][CH2:18][N:13]3[N:12]=2)[C:5](=[O:9])[N:6]([CH3:8])[CH:7]=1.[C:21]([O:24][CH2:25][C:26]1[C:27]([N:41]2[CH2:53][CH2:52][N:44]3[C:45]4[CH2:46][CH2:47][CH2:48][CH2:49][C:50]=4[CH:51]=[C:43]3[C:42]2=[O:54])=[N:28][CH:29]=[CH:30][C:31]=1B1OC(C)(C)C(C)(C)O1)(=[O:23])[CH3:22].CC([O-])=O.[Na+].[O-]P([O-])([O-])=O.[K+].[K+].[K+]>C(#N)C>[C:21]([O:24][CH2:25][C:26]1[C:27]([N:41]2[CH2:53][CH2:52][N:44]3[C:45]4[CH2:46][CH2:47][CH2:48][CH2:49][C:50]=4[CH:51]=[C:43]3[C:42]2=[O:54])=[N:28][CH:29]=[CH:30][C:31]=1[C:2]1[CH:3]=[C:4]([NH:10][C:11]2[CH:20]=[C:14]3[CH2:15][N:16]([CH3:19])[CH2:17][CH2:18][N:13]3[N:12]=2)[C:5](=[O:9])[N:6]([CH3:8])[CH:7]=1)(=[O:23])[CH3:22]

Participants

6

Reactant 4

HCID 62657Potassium Phosphate, TribasicHCID 517045Sodium AcetateHCID 580438845-Bromo-1-methyl-3-(5-methyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazin-2-ylamino)pyridin-2(1H)-oneHCID 86684143(2-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)methyl acetate

Product 1

HCID 86684195(4-(1-Methyl-5-(5-methyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazin-2-ylamino)-6-oxo-1,6-dihydropyridin-3-yl)-2-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)pyridin-3-yl)methyl acetateYield 94%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Conditions

Temperature
110 °C

Procedure

A sealed tube equipped with a magnetic stirrer was charged with 113f (190 mg, 0.56 mmol), 113i (215 mg, 0.56 mmol), Pd (dppf)Cl2 (47 mg, 0.056 mmol), 1.0 M NaOAc (93 mg, 1.12 mmol, 2.0 equiv), 1.0 M K3PO4 (240 mg, 1.12 mmol, 2.0 equiv), and acetonitrile (3 mL). After three cycles of vacuum/argon flush, the mixture was heated at 110° C. for 2 h. It was then filtered and the filtrate was evaporated in vacuo. The residue was purified by silica gel column chromatography eluting with dichloromethane/methanol (10:1, V/V) to afford 113j (300 mg, 94%) as a brown solid. LCMS: [M+H]+ 597

Workup

  1. customA sealed tube equipped with a magnetic stirrer
  2. customAfter three cycles of vacuum/argon flush
  3. filtrationIt was then filtered
  4. customthe filtrate was evaporated in vacuo
  5. customThe residue was purified by silica gel column chromatography
  6. washeluting with dichloromethane/methanol (10:1, V/V)

Sources & evidence

ORD record
ord-8bd02fd11dac4854991c7421553dd3b5
Source dataset
uspto-grants-2016_01
Patent number
US09238655B2

Reaction notes

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