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CAS 1637781-17-9
tert-Butyl 4-(6-[[6-(1-butoxyethenyl)-8-cyclopentyl-5-methyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-2-yl]amino]pyridin-3-yl)piperidine-1-carboxylate
Codes: Dalpiciclib Isethionate-012
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.
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→1-(Vinyloxy)butane→tert-Butyl 4-(6-[[6-(1-butoxyethenyl)-8-cyclopentyl-5-methyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-2-yl]amino]pyridin-3-yl)piperidine-1-carboxylate→tert-Butyl 4-[6-[(6-acetyl-8-cyclopentyl-5-methyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-2-yl)amino]pyridin-3-yl]piperidine-1-carboxylate→2-Hydroxyethane-1-sulfonic acid 6-acetyl-8-cyclopentyl-5-methyl-2-[[5-(piperidin-4-yl)pyridin-2-yl]amino]pyrido[2,3-d]pyrimidin-7(8H)-one→2-Amino-6-bromo-8-cyclopentyl-5-methylpyrido[2,3-d]pyrimidin-7(8H)-one→2-Amino-6-(1-butoxyethenyl)-8-cyclopentyl-5-methylpyrido[2,3-d]pyrimidin-7(8H)-one→tert-Butyl 6-chloro-3',6'-dihydro[3,4'-bipyridine]-1'(2'H)-carboxylate→5-Bromo-2-chloropyridine→tert-Butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,6-dihydropyridine-1(2H)-carboxylate→tert-Butyl 6-[[6-(1-butoxyethenyl)-8-cyclopentyl-5-methyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-2-yl]amino]-3',6'-dihydro[3,4'-bipyridine]-1'(2'H)-carboxylate
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