← Back to patent-cliff list
CAS 1207839-87-9
1-amino-3-bromo-5-methoxypyridin-1-ium 2,4,6-trimethylbenzenesulfonate
Codes: SELP-006
Application context (from source-drug indications)
Solid tumourSelpercatinibMedullary thyroid cancerSelpercatinibNon-small cell lung cancerSelpercatinibThyroid cancerSelpercatinib
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Selpercatinib | Tier C — Watch / trade | 2032 |
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-(6-fluoropyridin-3-yl)-6-(2-hydroxy-2-methylpropoxy)pyrazolo[1,5-a]pyridine-3-carbonitrile→tert-butyl 3,6-diazabicyclo[3.1.1]heptane-6-carboxylate→tert-butyl 3-(5-(3-cyano-6-(2-hydroxy-2-methylpropoxy)pyrazolo[1,5-a]pyridin-4-yl)pyridin-2-yl)-3,6-diazabicyclo[3.1.1]heptane-6-carboxylate→4-(6-(3,6-diazabicyclo[3.1.1]heptan-3-yl)pyridin-3-yl)-6-(2-hydroxy-2-methylpropoxy)pyrazolo[1,5-a]pyridine-3-carbonitrile→6-methoxynicotinaldehyde→tert-butyl hydroxycarbamate→2,4,6-trimethylbenzenesulfonyl chloride→tert-butyl ((mesitylsulfonyl)oxy)carbamate→O-(mesitylsulfonyl)hydroxylamine→3-bromo-5-methoxypyridine→1-amino-3-bromo-5-methoxypyridin-1-ium 2,4,6-trimethylbenzenesulfonate→ethyl propiolate→ethyl 6-bromo-4-methoxypyrazolo[1,5-a]pyridine-3-carboxylate→ethyl 4-bromo-6-methoxypyrazolo[1,5-a]pyridine-3-carboxylate→4-bromo-6-methoxypyrazolo[1,5-a]pyridine→4-bromo-6-methoxypyrazolo[1,5-a]pyridine-3-carbaldehyde→(E)-4-bromo-6-methoxypyrazolo[1,5-a]pyridine-3-carbaldehyde oxime→4-bromo-6-methoxypyrazolo[1,5-a]pyridine-3-carbonitrile→4-bromo-6-hydroxypyrazolo[1,5-a]pyridine-3-carbonitrile→2,2-dimethyloxirane→4-bromo-6-(2-hydroxy-2-methylpropoxy)pyrazolo[1,5-a]pyridine-3-carbonitrile→2-fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine
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.