← Back to patent-cliff list
CAS 252873-50-0
(3S,3aS,6aR)-hexahydrofuro[2,3-b]furan-3-ol
Codes: DARU-042
Application context (from source-drug indications)
HIV infectionDarunavir Ethanolate/RitonavirHIV infectionDarunavir Ethanolate/CobicistatHIV infectionDarunavir Ethanolate
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Darunavir Ethanolate/Ritonavir | Tier C — Watch / trade | - |
| Darunavir Ethanolate/Cobicistat | Tier C — Watch / trade | - |
| Darunavir Ethanolate | Tier B — Position early | - |
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.
(2R,3S)-3-iodo-2-(prop-2-yn-1-yloxy)tetrahydrofuran→(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-(benzyloxy)acetaldehyde→vinylmagnesium bromide→1-(benzyloxy)but-3-en-2-ol→prop-1-en-2-yl acetate→(S)-1-(benzyloxy)but-3-en-2-ol→acryloyl chloride→(S)-1-(benzyloxy)but-3-en-2-yl acrylate→(S)-5-((benzyloxy)methyl)furan-2(5H)-one→1,3-dioxolane→(4S,5S)-5-((benzyloxy)methyl)-4-(1,3-dioxolan-2-yl)dihydrofuran-2(3H)-one→(4S,5S)-4-(1,3-dioxolan-2-yl)-5-(hydroxymethyl)dihydrofuran-2(3H)-one→(3S,3aS,6aR)-hexahydrofuro[2,3-b]furan-3-ol
(2R,3S)-3-iodo-2-(prop-2-yn-1-yloxy)tetrahydrofuran→(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-(benzyloxy)acetaldehyde→vinylmagnesium bromide→1-(benzyloxy)but-3-en-2-ol→prop-1-en-2-yl acetate→(S)-1-(benzyloxy)but-3-en-2-ol→acryloyl chloride→(S)-1-(benzyloxy)but-3-en-2-yl acrylate→(S)-5-((benzyloxy)methyl)furan-2(5H)-one→1,3-dioxolane→(4S,5S)-5-((benzyloxy)methyl)-4-(1,3-dioxolan-2-yl)dihydrofuran-2(3H)-one→(4S,5S)-4-(1,3-dioxolan-2-yl)-5-(hydroxymethyl)dihydrofuran-2(3H)-one→(3S,3aS,6aR)-hexahydrofuro[2,3-b]furan-3-ol
(2R,3S)-3-iodo-2-(prop-2-yn-1-yloxy)tetrahydrofuran→(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-(benzyloxy)acetaldehyde→vinylmagnesium bromide→1-(benzyloxy)but-3-en-2-ol→prop-1-en-2-yl acetate→(S)-1-(benzyloxy)but-3-en-2-ol→acryloyl chloride→(S)-1-(benzyloxy)but-3-en-2-yl acrylate→(S)-5-((benzyloxy)methyl)furan-2(5H)-one→1,3-dioxolane→(4S,5S)-5-((benzyloxy)methyl)-4-(1,3-dioxolan-2-yl)dihydrofuran-2(3H)-one→(4S,5S)-4-(1,3-dioxolan-2-yl)-5-(hydroxymethyl)dihydrofuran-2(3H)-one→(3S,3aS,6aR)-hexahydrofuro[2,3-b]furan-3-ol
Intermediates available on this site
No listed intermediates for this target yet — send an RFQ directly and it will enter our matching pool.
This is a CAS-level registry record: registrations across routes are merged. Supplier offers and buyer demands will be matched on this CAS as the primary key.