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CAS 228710-82-5
5-Bromo-2-(2,5-dimethyl-1H-pyrrol-1-yl)pyridine
Codes: Dalpiciclib Isethionate-004
Application context (from source-drug indications)
Breast cancerDalpiciclib IsethionateMetastatic breast cancerDalpiciclib IsethionateProstate cancerDalpiciclib Isethionate三阴性乳腺癌Dalpiciclib IsethionateMeningiomaDalpiciclib IsethionateHepatic function declineDalpiciclib Isethionate
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Dalpiciclib Isethionate | 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.
1-Benzylpiperidin-4-one→4-Methylbenzenesulfonhydrazide→N'-(1-Benzylpiperidin-4-ylidene)-4-methylbenzene-1-sulfonohydrazide→5-Bromo-2-(2,5-dimethyl-1H-pyrrol-1-yl)pyridine→1'-Benzyl-6-(2,5-dimethyl-1H-pyrrol-1-yl)-1',2',3',6'-tetrahydro-3,4'-bipyridine→1'-Benzyl-1',2',3',6'-tetrahydro[3,4'-bipyridin]-6-amine→5-(Piperidin-4-yl)pyridin-2-amine→tert-Butyl 4-(6-aminopyridin-3-yl)piperidine-1-carboxylate→6-Bromo-2-chloro-8-cyclopentyl-5-methylpyrido[2,3-d]pyrimidin-7-one→tert-Butyl 4-[6-[(6-bromo-8-cyclopentyl-5-methyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-2-yl)amino]pyridin-3-yl]piperidine-1-carboxylate
5-Bromo-2-(2,5-dimethyl-1H-pyrrol-1-yl)pyridine→tert-Butyl 4-(6-aminopyridin-3-yl)piperidine-1-carboxylate→Chlorido[6-(2,5-dimethyl-1H-pyrrol-1-yl)pyridin-3-yl]magnesium→Pyridine→tert-Butyl 6-(2,5-dimethyl-1H-pyrrol-1-yl)[3,4'-bipyridine]-1'(4'H)-carboxylate→tert-Butyl 4-[6-(2,5-dimethyl-1H-pyrrol-1-yl)pyridin-3-yl]piperidine-1-carboxylate
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