Ammonia → HCID 66954690, compound
Reaction equation
[CH3:1][O:2][C:3]([C:5]1[C:10]([Cl:11])=[C:9](S(C)(=O)=O)[N:8]=[C:7]([C:16]2[CH:21]=[CH:20][C:19]([Cl:22])=[C:18]([O:23][CH2:24][CH3:25])[C:17]=2[F:26])[N:6]=1)=[O:4].[NH3:27].CO>O1CCOCC1>[CH3:1][O:2][C:3]([C:5]1[C:10]([Cl:11])=[C:9]([NH2:27])[N:8]=[C:7]([C:16]2[CH:21]=[CH:20][C:19]([Cl:22])=[C:18]([O:23][CH2:24][CH3:25])[C:17]=2[F:26])[N:6]=1)=[O:4]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
5-Chloro-2-(4-chloro-3-ethoxy-2-fluorophenyl)-6-methane-sulfonylpyrimidine-4-carboxylic acid methyl ester (350 mg, 0.83 mmol) was dissolved in 10 mL p-dioxane and 7N ammonia in methanol (0.43 mL, 3 mmol) was added. The reaction mixture was stirred at room temperature for 3 hours and then concentrated. The residue was partitioned between ethyl acetate and water and the organic phase was dried and concentrated. The product was purified by column chromatography to yield 6-amino-5-chloro-2-(4-chloro-3-ethoxy-2-fluorophenyl)-pyrimidine-4-carboxylic acid methyl ester (160 mg, 54% yield): 1H NMR (CDCl3): δ 7.65 (dd, 1H), 7.24 (dd, 1H), 5.67 (br s, 2H), 4.22 (q, 2H), 4.03 (s, 3H), 1.46 (t, 3H).
Workup
- concentrationconcentrated
- customThe residue was partitioned between ethyl acetate and water
- customthe organic phase was dried
- concentrationconcentrated
- customThe product was purified by column chromatography
Sources & evidence
- ORD record
- ord-696f2cb45ff14d19b8b361ee0cbfde74
- Source dataset
- uspto-grants-2011_02
- Patent number
- US07888287B2
Reaction notes
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