Water → 6-(1-Benzhydryl-3-methyl-azetidin-3-ylamino)-7-fluoro-4-methyl-2,10-dihydro-9-oxa-1,2,4a-triaza-phenanthren-3-one

HRID 519039Notes

Reaction equation

HRID 519039 reaction equation
[NH2:1][C:2]1[CH:3]=[C:4]2[C:13](=[CH:14][C:15]=1[F:16])[O:12][CH2:11][C:10]1[N:5]2[CH:6]([CH3:18])[C:7](=[O:17])[NH:8][N:9]=1.[CH:19]([N:32]1[CH2:35][C:34](OS(C)(=O)=O)([CH3:36])[CH2:33]1)([C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1)[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1.C([O-])([O-])=O.[K+].[K+].O>CN(C=O)C>[CH:19]([N:32]1[CH2:35][C:34]([NH:1][C:2]2[CH:3]=[C:4]3[C:13](=[CH:14][C:15]=2[F:16])[O:12][CH2:11][C:10]2[N:5]3[CH:6]([CH3:18])[C:7](=[O:17])[NH:8][N:9]=2)([CH3:36])[CH2:33]1)([C:26]1[CH:27]=[CH:28][CH:29]=[CH:30][CH:31]=1)[C:20]1[CH:21]=[CH:22][CH:23]=[CH:24][CH:25]=1

Participants

6

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 100652951-Benzhydryl-3-methylazetidin-3-yl methanesulfonateHCID 867273266-Amino-7-fluoro-4-methyl-2,10-dihydro-9-oxa-1,2,4a-triaza-phenanthren-3-one

Product 1

HCID 867274036-(1-Benzhydryl-3-methyl-azetidin-3-ylamino)-7-fluoro-4-methyl-2,10-dihydro-9-oxa-1,2,4a-triaza-phenanthren-3-oneYield 28.3%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
80 °C

Procedure

A mixture of 6-amino-7-fluoro-4-methyl-2,10-dihydro-9-oxa-1,2,4a-triaza-phenanthren-3-one (Example #56, Step F, 0.100 g, 0.400 mmol), methanesulfonic acid 1-benzhydryl-3-methyl-azetidin-3-yl ester (Preparation #3, Step B, 0.159 g, 0.480 mmol) and K2CO3 (0.166 g, 1.199 mmol) in DMF (2 mL) was stirred at 80° C. overnight. The reaction mixture was cooled to ambient temperature and poured into water (8 mL). The aqueous mixture was extracted with EtOAc (3×10 mL) and the combined organic phase was washed with brine (3×10 mL), dried over anhydrous Na2SO4, filtered and evaporated in vacuo. The residue was purified by column chromatography on silica gel (eluting with 5-10% EtOAc in petroleum ether) to give 6-(1-benzhydryl-3-methyl-azetidin-3-ylamino)-7-fluoro-4-methyl-2,10-dihydro-9-oxa-1,2,4a-triaza-phenanthren-3-one as a white solid (0.055 g, 28%). LC/MS (Table 1, Method 2) Rt=1.199 min.; MS m/z: 486 [M+H]+.

Workup

  1. temperatureThe reaction mixture was cooled to ambient temperature
  2. extractionThe aqueous mixture was extracted with EtOAc (3×10 mL)
  3. washthe combined organic phase was washed with brine (3×10 mL)
  4. dry with materialdried over anhydrous Na2SO4
  5. filtrationfiltered
  6. customevaporated in vacuo
  7. customThe residue was purified by column chromatography on silica gel (eluting with 5-10% EtOAc in petroleum ether)

Sources & evidence

ORD record
ord-06e76d4fef2b4f35b3dd0110069a84a2
Source dataset
uspto-grants-2015_08
Patent number
US09115151B2

Reaction notes

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