HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ammonium Hydroxide → (+)-4-[(4-chlorophenyl)(1,2-dihydro-1-methyl-2-oxo-4-phenyl-6-quinolinyl)hydroxymethyl]-N,N-dimethyl-1H-imidazole-1-sulfonamide
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ammonium Hydroxide | HCID 14923 | — |
| Reactant | (+/-)-4-[(4-chlorophenyl)(1,2-dihydro-1-methyl-2-oxo-4-phenyl-6-quinolinyl)hydroxymethyl]-N,N-dimethyl-2-(triethylsilyl)-1H-imidazole-1-sulfonamide | HCID 22714347 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Sulfuric Acid | HCID 1118 | — |
| Product | (+)-4-[(4-chlorophenyl)(1,2-dihydro-1-methyl-2-oxo-4-phenyl-6-quinolinyl)hydroxymethyl]-N,N-dimethyl-1H-imidazole-1-sulfonamide | HCID 22714362 | 11.2% |
Reaction Conditions
| Temperature | 110 °C |
|---|
Reaction Steps
A mixture of intermediate (3-a) (26 g) in sulfuric acid (2.5 ml) and water (250 ml) was stirred and heated at 110° C. for 2 hours. The mixture was poured into ice, basified with NH4OH and extracted with DCM. The organic layer was dried (MgSO4), filtered off and evaporated till dryness. The residue was purified by column chromatography over silica gel (eluent: CH2Cl2/CH3OH/NH4OH 99/1/0.2). The pure fractions were collected and evaporated, yielding 2.4 g (11%) of (±)-4-[(4-chlorophenyl)(1,2-dihydro-1-methyl-2-oxo-4-phenyl-6-quinolinyl)hydroxymethyl]-N,N-dimethyl-1H-imidazole-1-sulfonamide (interm. 3-b).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06420387B1 |
| Source dataset | uspto-grants-2002_07 |
| ORD ID | ord-f7873c24bd074ca6a6910f4b5bb80c6e |
| Source note | uspto-grants-2002_07 |