HuagongsheHuagongshe Chemistry Print Report · For research reference only
1,8-Diazabicyclo(5.4.0)undec-7-ene → 7-(4-Nitro-2-isoindolinyl)-1-ethyl-6,8-difluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 1,8-Diazabicyclo(5.4.0)undec-7-ene | HCID 81184 | — |
| Reactant | 1-Ethyl-6,7,8-trifluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid | HCID 9835179 | — |
| Reactant | 4-Nitroisoindoline hydrobromide | HCID 19828497 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 7-(4-Nitro-2-isoindolinyl)-1-ethyl-6,8-difluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid | HCID 14795809 | 43.1% |
Reaction Steps
147 mg of 1-ethyl-6,7,8-trifluoro-1,4-dihydro-4- oxoquinoline-3-carboxylic acid, 176 mg of 4-nitroisoindoline hydrobromide, 164 mg of DBU, and 1.5 ml of anhydrous DMF were processed in the same manner as in Example 20 to produce 97 mg of the target compound.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05026856 |
| Source dataset | uspto-grants-1991_06 |
| ORD ID | ord-4198624c869d4eaf9f5a6c49ccc4a2c8 |
| Source note | uspto-grants-1991_06 |