1,2-Dimethoxyethane → HCID 67016249, compound

HRID 1918816Notes

Reaction equation

HRID 1918816 reaction equation
Br[C:2]1[CH:3]=[C:4]([NH:10][C:11]2[CH:19]=[C:14]3[CH2:15][O:16][CH2:17][CH2:18][N:13]3[N:12]=2)[C:5](=[O:9])[N:6]([CH3:8])[CH:7]=1.[C:20]([O:23][CH2:24][C:25]1[C:30](B2OC(C)(C)C(C)(C)O2)=[CH:29][CH:28]=[CH:27][C:26]=1[N:40]1[CH2:52][CH2:51][N:43]2[C:44]3[CH2:45][CH2:46][CH2:47][CH2:48][C:49]=3[CH:50]=[C:42]2[C:41]1=[O:53])(=[O:22])[CH3:21].COCCOC.C(=O)([O-])[O-].[Na+].[Na+]>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.CO.CCOCC.O.CCOC(C)=O>[C:20]([O:23][CH2:24][C:25]1[C:26]([N:40]2[CH2:52][CH2:51][N:43]3[C:44]4[CH2:45][CH2:46][CH2:47][CH2:48][C:49]=4[CH:50]=[C:42]3[C:41]2=[O:53])=[CH:27][CH:28]=[CH:29][C:30]=1[C:2]1[CH:3]=[C:4]([NH:10][C:11]2[CH:19]=[C:14]3[CH2:15][O:16][CH2:17][CH2:18][N:13]3[N:12]=2)[C:5](=[O:9])[N:6]([CH3:8])[CH:7]=1)(=[O:22])[CH3:21]

Participants

10

Reactant 4

HCID 80711,2-DimethoxyethaneHCID 10340Sodium CarbonateHCID 580438772-(2-(Acetoxymethyl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-1(2H)-oneHCID 670161895-Bromo-3-(6,7-dihydro-4H-pyrazolo[5,1-c][1,4]oxazin-2-ylamino)-1-methylpyridin-2(1H)-one

Product 1

HCID 67016249HCID 67016249, compoundYield 90.1%

Reagents, catalysts & solvents 5

HCID 178418397HCID 178418397, compoundCatalystHCID 887MethanolSolventHCID 962WaterSolventHCID 3283Diethyl EtherSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
130 °C

Procedure

A microwave tube equipped with a magnetic stirrer was charged with 5-bromo-3-(6,7-dihydro-4H-pyrazolo[5,1-c][1,4]oxazin-2-ylamino)-1-methylpyridin-2(1H)-one 110c (130 mg, 0.4 mmol), 2-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl acetate 114a (220 mg, 0.5 mmol), DME (4 mL) and 1M aqueous sodium carbonate (1.2 mL). After bubbling N2 for 15 min, Pd(PPh3)4 (23 mg, 0.02 mmol) was added. The mixture was heated in microwave to 130° C. for 20 min. After this time, EtOAc (5 mL) and water (5 mL) were added. The separated aqueous layer was extracted with EtOAc (2×5 mL). The combined organics were washed with brine (10 mL), dried over sodium sulfate, filtered and concentrated under reduced pressure. The resulting residue was purified by column chromatography eluting with a gradient of CH2Cl2-60:35:5 CH2Cl2:Et2O:MeOH to afford a 89% yield (210 mg) of 110d.

Workup

  1. customA microwave tube equipped with a magnetic stirrer
  2. customAfter bubbling N2 for 15 min
  3. extractionThe separated aqueous layer was extracted with EtOAc (2×5 mL)
  4. washThe combined organics were washed with brine (10 mL)
  5. dry with materialdried over sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. customThe resulting residue was purified by column chromatography
  9. washeluting with a gradient of CH2Cl2-60:35:5 CH2Cl2

Sources & evidence

ORD record
ord-5ee15008c9ea4399aedbea7117d83bf6
Source dataset
uspto-grants-2013_12
Patent number
US08618107B2

Reaction notes

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