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CAS 1159908-20-9
(4aS,7aS)-4-((R)-1-phenylethyl)-6-tosylhexahydropyrrolo[3,4-b][1,4]oxazin-3(2H)-one
Codes：FINA-038
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.
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→(E)-but-2-ene-1,4-diol→1-tosyl-2,5-dihydro-1H-pyrrole→3-tosyl-6-oxa-3-azabicyclo[3.1.0]hexane→2,4-dichloro-1-fluorobenzene→1-(2,4-dichloro-5-fluorophenyl)ethanone→2,4-dichloro-5-fluorobenzoic acid→2,4-dichloro-5-fluoro-3-nitrobenzoic acid→methyl 2,4-dichloro-5-fluoro-3-nitrobenzoate→methyl 3-amino-2,4-dichloro-5-fluorobenzoate→methyl 2,4-dichloro-3-cyano-5-fluorobenzoate→2,4-dichloro-3-cyano-5-fluorobenzoic acid→(4aS,7aS)-tert-butyl hexahydropyrrolo[3,4-b][1,4]oxazine-4(4aH)-carboxylate→(4aS,7aS)-tert-butyl 6-(8-cyano-1-cyclopropyl-3-(ethoxycarbonyl)-6-fluoro-4-oxo-1,4-dihydroquinolin-7-yl)hexahydropyrrolo[3,4-b][1,4]oxazine-4(4aH)-carboxylate→7-((4aS,7aS)-4-(tert-butoxycarbonyl)hexahydropyrrolo[3,4-b][1,4]oxazin-6(2H)-yl)-8-cyano-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid→(E)-1,4-dichlorobut-2-ene→(R)-1-phenylethan-1-amine→(3S,4S)-4-(((R)-1-phenylethyl)amino)-1-tosylpyrrolidin-3-ol→2-chloroacetyl chloride→2-chloro-N-((3S,4S)-4-hydroxy-1-tosylpyrrolidin-3-yl)-N-((R)-1-phenylethyl)acetamide→(4aS,7aS)-4-((R)-1-phenylethyl)-6-tosylhexahydropyrrolo[3,4-b][1,4]oxazin-3(2H)-one→(4aS,7aS)-4-((R)-1-phenylethyl)-6-tosyloctahydropyrrolo[3,4-b][1,4]oxazine→(4aS,7aS)-6-tosyloctahydropyrrolo[3,4-b][1,4]oxazine→(4aS,7aS)-tert-butyl 6-tosylhexahydropyrrolo[3,4-b][1,4]oxazine-4(4aH)-carboxylate
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