Hydrochloric Acid → HCID 86641290, compound

HRID 1513094Notes

Reaction equation

HRID 1513094 reaction equation
[Cl:1][C:2]1[CH:7]=[C:6]([O:8][CH3:9])[C:5]([O:10][CH2:11][C:12]2[C:17]([O:18][CH3:19])=[CH:16][CH:15]=[C:14]([F:20])[C:13]=2[F:21])=[CH:4][C:3]=1[N:22]1[C:30](=[O:31])[NH:29][C:28]2[C:23]1=[N:24][C:25]([CH2:34]Cl)=[N:26][C:27]=2[O:32][CH3:33].[N-:36]=[N+:37]=[N-:38].[Na+].Cl>CN(C)C=O>[N:36]([CH2:34][C:25]1[N:24]=[C:23]2[C:28]([NH:29][C:30](=[O:31])[N:22]2[C:3]2[CH:4]=[C:5]([O:10][CH2:11][C:12]3[C:17]([O:18][CH3:19])=[CH:16][CH:15]=[C:14]([F:20])[C:13]=3[F:21])[C:6]([O:8][CH3:9])=[CH:7][C:2]=2[Cl:1])=[C:27]([O:32][CH3:33])[N:26]=1)=[N+:37]=[N-:38]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 33557Sodium AzideHCID 68515651HCID 68515651, compound

Product 1

HCID 86641290HCID 86641290, compoundYield 73.1%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
100 °C

Procedure

A mixture of 9-[2-chloro-5-(2,3-difluoro-6-methoxybenzyloxy)-4-methoxyphenyl]-2-chloromethyl-6-methoxy-7,9-dihydro-8H-purin-8-one (0.1 g) and sodium azide (15 mg) in N,N-dimethylformamide (2 mL) was stirred at 100° C. for 1.5 hours. The reaction mixture was cooled to room temperature, and poured into 0.5 mol/L hydrochloric acid, and the resulting mixture was extracted with ethyl acetate. The extract was washed with water and brine, and dried over anhydrous sodium sulfate. The solvent was removed under reduced pressure, and the residue was purified by column chromatography on silica gel (eluent: n-hexane/ethyl acetate=1/1−1/4). The obtained product was suspended in a mixed solvent (n-hexane/ethyl acetate=1/1), and collected by filtration. The collected material was dried under reduced pressure to give 2-azidomethyl-9-[2-chloro-5-(2,3-difluoro-6-methoxybenzyloxy)-4-methoxyphenyl]-6-methoxy-7,9-dihydro-8H-purin-8-one (74 mg). To this material were added tetrahydrofuran (5 mL), ethanol (1 mL) and 10% platinum-carbon powder (20 mg), and the mixture was stirred at room temperature under a hydrogen atmosphere overnight. The insoluble material was removed by filtration, and the filtrate was concentrated under reduced pressure. The residue was purified by column chromatography on silica gel (eluent: ethyl acetate/methanol=9/1−methanol) to give 2-aminomethyl-9-[2-chloro-5-(2,3-difluoro-6-methoxybenzyloxy)-4-methoxyphenyl]-6-methoxy-7,9-dihydro-8H-purin-8-one (44 mg). To this material were added tetrahydrofuran (3 mL), triethylamine (0.1 mL) and di(tert-butyl)dicarbonate (28 mg), and the mixture was stirred at room temperature for 3 hours. The reaction mixture was poured into a saturated aqueous ammonium chloride solution, and the resulting mixture was extracted with ethyl acetate. The extract was washed with brine, and dried over anhydrous sodium sulfate. The solvent was removed under reduced pressure, and the residue was purified by column chromatography on silica gel (eluent: n-hexane/ethyl acetate=1/1−1/4) to give the title compound (36 mg).

Workup

  1. temperatureThe reaction mixture was cooled to room temperature
  2. extractionthe resulting mixture was extracted with ethyl acetate
  3. washThe extract was washed with water and brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. customThe solvent was removed under reduced pressure
  6. customthe residue was purified by column chromatography on silica gel (eluent: n-hexane/ethyl acetate=1/1−1/4)
  7. filtrationcollected by filtration
  8. customThe collected material was dried under reduced pressure

Sources & evidence

ORD record
ord-2c569fec86064f00ad7d2e60225b4a81
Source dataset
uspto-grants-2012_07
Patent number
US08217069B2

Reaction notes

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