← Back to patent-cliff list
CAS 206195-19-9
tert-Butyl [(7S,7aR,10S,11R)-1,2,3,10-tetramethoxy-9-oxo-6,7,8,9,10,11-hexahydro-5H-7a,11-epoxybenzo[a]heptalen-7-yl]carbamate
Codes: (III)70274-4-a
Application context (from source-drug indications)
Coronary artery lesionColchicineMyocardial infarctionColchicineStrokeColchicine痛风性关节炎Colchicine脑出血ColchicineAtrial fibrillationColchicine
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Colchicine | 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.
tert-Butyl [(4S)-8,9,10-trimethoxy-5,6-dihydro-4H-benzo[3,4]cyclohepta[1,2-b]furan-4-yl]carbamate→[(3,3-Dimethoxyprop-1-en-2-yl)oxy](trimethyl)silane→tert-Butyl [(7S,7aR,10S,11R)-1,2,3,10-tetramethoxy-9-oxo-6,7,8,9,10,11-hexahydro-5H-7a,11-epoxybenzo[a]heptalen-7-yl]carbamate→tert-Butyl [(7S)-1,2,3,10-tetramethoxy-9-oxo-5,6,7,9-tetrahydrobenzo[a]heptalen-7-yl]carbamate→(V)70274-4-a→Acetic acid acetic anhydride
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.