HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethyl 1-cyclopropyl-6,8-difluoro-7-(3-mesyloxy-1-azetidinyl)-1,4-dihydro-4-oxo-3-quinolinecarboxylate → 1-Cyclopropyl-6,8-difluoro-7-(3-mesyloxy-1-azetidinyl)-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethyl 1-cyclopropyl-6,8-difluoro-7-(3-mesyloxy-1-azetidinyl)-1,4-dihydro-4-oxo-3-quinolinecarboxylate | HCID 15615454 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Sodium Hydroxide | HCID 14798 | — |
| Product | 1-Cyclopropyl-6,8-difluoro-7-(3-mesyloxy-1-azetidinyl)-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid | HCID 10093202 | — |
Reaction Steps
A solution of 0.2 g (0.4 mmole) of ethyl 1-cyclopropyl-6,8-difluoro-7-(3-mesyloxy-1-azetidinyl)-1,4-dihydro-4-oxo-3-quinolinecarboxylate (example 3) in 6 ml of 0.5N sodium hydroxide and 1 ml of ethanol is refluxed for 1 hour. It is evaporated under vacuum, and acetic acid is added. Filtering and washing yield 0.18 g (96%) of 1-cyclopropyl-6,8-difluoro-7-(3-mesyloxy-1-azetidinyl)-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid melting at 240°-4° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04927926 |
| Source dataset | uspto-grants-1990_05 |
| ORD ID | ord-768a549440c0465f8abb87e6081959b6 |
| Source note | uspto-grants-1990_05 |