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CAS 809286-93-9
(3aR,6aR)-tetrahydrofuro[2,3-b]furan-3(2H)-one
Codes：DARU-005
Application context (from source-drug indications)
HIV感染乙醇达芦那韦/利托那韦HIV感染乙醇达芦那韦/考比司他
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| 乙醇达芦那韦/利托那韦Darunavir Ethanolate/Ritonavir | Tier C — Watch / trade | - |
| 乙醇达芦那韦/考比司他Darunavir Ethanolate/Cobicistat | 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.
2,3-dihydrofuran→prop-2-yn-1-ol→(2R,3S)-3-iodo-2-(prop-2-yn-1-yloxy)tetrahydrofuran→(3aS,6aR)-3-methylenehexahydrofuro[2,3-b]furan→(3aR,6aR)-tetrahydrofuro[2,3-b]furan-3(2H)-one→(3aS,6aR)-hexahydrofuro[2,3-b]furan-3-ol→(3R,3aS,6aR)-hexahydrofuro[2,3-b]furan-3-ol→bis(2,5-dioxopyrrolidin-1-yl) carbonate→2,5-dioxopyrrolidin-1-yl ((3R,3aS,6aR)-hexahydrofuro[2,3-b]furan-3-yl) carbonate→4-amino-N-((2R,3S)-3-amino-2-hydroxy-4-phenylbutyl)-N-isobutylbenzenesulfonamide→2-vinyloxirane→(E)-4-phenylbut-2-en-1-ol→((2R,3R)-3-benzyloxiran-2-yl)methanol→(2S,3S)-3-azido-4-phenylbutane-1,2-diol→(S)-2-((S)-1-azido-2-phenylethyl)oxirane→2-methylpropan-1-amine→(2R,3S)-3-azido-1-(isobutylamino)-4-phenylbutan-2-ol→4-nitrobenzenesulfonyl chloride
2,3-dihydrofuran→prop-2-yn-1-ol→(2R,3S)-3-iodo-2-(prop-2-yn-1-yloxy)tetrahydrofuran→(3aS,6aR)-3-methylenehexahydrofuro[2,3-b]furan→(3aR,6aR)-tetrahydrofuro[2,3-b]furan-3(2H)-one→(3aS,6aR)-hexahydrofuro[2,3-b]furan-3-ol→(3R,3aS,6aR)-hexahydrofuro[2,3-b]furan-3-ol→bis(2,5-dioxopyrrolidin-1-yl) carbonate→2,5-dioxopyrrolidin-1-yl ((3R,3aS,6aR)-hexahydrofuro[2,3-b]furan-3-yl) carbonate→4-amino-N-((2R,3S)-3-amino-2-hydroxy-4-phenylbutyl)-N-isobutylbenzenesulfonamide→2-vinyloxirane→(E)-4-phenylbut-2-en-1-ol→((2R,3R)-3-benzyloxiran-2-yl)methanol→(2S,3S)-3-azido-4-phenylbutane-1,2-diol→(S)-2-((S)-1-azido-2-phenylethyl)oxirane→2-methylpropan-1-amine→(2R,3S)-3-azido-1-(isobutylamino)-4-phenylbutan-2-ol→4-nitrobenzenesulfonyl chloride
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