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CAS 209401-69-4
(4aS,7aS)-octahydropyrrolo[3,4-b][1,4]oxazine
Codes：FINA-013
Application context (from source-drug indications)
外耳炎非那沙星分泌性中耳炎非那沙星中耳炎非那沙星泌尿系统感染非那沙星肾盂肾炎非那沙星革兰氏阴性细菌感染非那沙星
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| 非那沙星Finafloxacin | Tier C — Watch / trade | - |
Position in synthesis routes (up/downstream chain)
Ordered by route registration; left → right is the synthesis direction. The highlighted node is the current CAS; others link to their own profiles.
1-fluoro-3,5-dimethylbenzene→2,4-dichloro-1-fluoro-3,5-dimethylbenzene→2,4-dichloro-3-(dichloromethyl)-1-fluoro-5-(trichloromethyl)benzene→2,4-dichloro-5-fluoro-3-formylbenzoic acid→(Z)-2,4-dichloro-5-fluoro-3-((hydroxyimino)methyl)benzoic acid→2,4-dichloro-3-cyano-5-fluorobenzoyl chloride→(Z)-ethyl 3-(dimethylamino)acrylate→ethyl 2-(2,4-dichloro-3-cyano-5-fluorobenzoyl)-3-(dimethylamino)acrylate→cyclopropanamine→ethyl 3-(cyclopropylamino)-2-(2,4-dichloro-3-cyano-5-fluorobenzoyl)acrylate→ethyl 7-chloro-8-cyano-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylate→7-chloro-8-cyano-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid→(4aS,7aS)-octahydropyrrolo[3,4-b][1,4]oxazine→(E)-but-2-ene-1,4-diol→1-tosyl-2,5-dihydro-1H-pyrrole→3-tosyl-6-oxa-3-azabicyclo[3.1.0]hexane→2-aminoethan-1-ol→4-((2-hydroxyethyl)amino)-1-tosylpyrrolidin-3-ol→2-(N-(4-hydroxy-1-tosylpyrrolidin-3-yl)-4-methylphenylsulfonamido)ethyl 4-methylbenzenesulfonate→4,6-ditosyloctahydropyrrolo[3,4-b][1,4]oxazine→(4aS,7aS)-4,6-ditosyloctahydropyrrolo[3,4-b][1,4]oxazine
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