← Back to patent-cliff list
CAS 901119-38-8
di-tert-butyl ((6-((5-fluoro-2-((3,4,5-trimethoxyphenyl)amino)pyrimidin-4-yl)amino)-2,2-dimethyl-3-oxo-2H-pyrido[3,2-b][1,4]oxazin-4(3H)-yl)methyl) phosphate
Codes: FOST-005
Application context (from source-drug indications)
Immune thrombocytopenic purpuraFostamatinib disodium hexahydrateThrombocytopeniaFostamatinib disodium hexahydrateViral pneumoniaFostamatinib disodium hexahydratePneumoniaFostamatinib disodium hexahydrateCOVID-19Fostamatinib disodium hexahydrateSevere acute respiratory syndromeFostamatinib disodium hexahydrate
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Fostamatinib disodium hexahydrate | 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.
6-[(2-chloro-5-fluoropyrimidin-4-yl)amino]-2,2-dimethyl-4H-pyrido[3,2-b][1,4]oxazin-3-one→3,4,5-trimethoxyaniline→6-((5-fluoro-2-((3,4,5-trimethoxyphenyl)amino)pyrimidin-4-yl)amino)-2,2-dimethyl-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one→di-tert-butyl (chloromethyl) phosphate→di-tert-butyl ((6-((5-fluoro-2-((3,4,5-trimethoxyphenyl)amino)pyrimidin-4-yl)amino)-2,2-dimethyl-3-oxo-2H-pyrido[3,2-b][1,4]oxazin-4(3H)-yl)methyl) phosphate→(6-((5-fluoro-2-((3,4,5-trimethoxyphenyl)amino)pyrimidin-4-yl)amino)-2,2-dimethyl-3-oxo-2H-pyrido[3,2-b][1,4]oxazin-4(3H)-yl)methyl dihydrogen phosphate
Intermediates available on this site
Side-by-side comparison of all listed offers on this CAS; price bands are list-price ranges, final price subject to RFQ confirmation.
| Supplier | Product | Price band | MOQ | Lead time | Qualifications | Action |
|---|---|---|---|---|---|---|
| Qualified Partner — East China API Works | 6-Amino-2,2-dimethyl-2H-pyrido[3,2-B][1,4]oxazin-3(4H)-one Pharmaceutical Intermediates | On request | On request | On request | — |
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.