← Back to patent-cliff list
CAS 923288-55-5
3,4-bis(benzyloxy)-5-nitrobenzoic acid
Codes：OPIC-004
Application context (from source-drug indications)
帕金森病奥吡卡朋帕金森综合征奥吡卡朋癫痫奥吡卡朋
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| 奥吡卡朋Opicapone | 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.
4-hydroxy-3-methoxybenzoic acid→4-hydroxy-3-methoxy-5-nitrobenzoic acid→3,4-dihydroxy-5-nitrobenzoic acid→3,4-bis(benzyloxy)-5-nitrobenzoic acid→(Z)-2,5-dichloro-N'-hydroxy-4,6-dimethylnicotinimidamide→(Z)-N'-((3,4-bis(benzyloxy)-5-nitrobenzoyl)oxy)-2,5-dichloro-4,6-dimethylnicotinimidamide→5-(3,4-bis(benzyloxy)-5-nitrophenyl)-3-(2,5-dichloro-4,6-dimethylpyridin-3-yl)-1,2,4-oxadiazole→3-(5-(3,4-bis(benzyloxy)-5-nitrophenyl)-1,2,4-oxadiazol-3-yl)-2,5-dichloro-4,6-dimethylpyridine 1-oxide
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.