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CAS 1374144-82-7
(3S)-3-[[tert-Butyl(dimethyl)silyl]oxy]piperidine
Codes: (IIIb)461018-6-a
Application context (from source-drug indications)
Waldenström macroglobulinaemiaIbrutinibChronic lymphocytic leukaemiaIbrutinibMantle cell lymphomaIbrutinibGraft-versus-host diseaseIbrutinib
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Ibrutinib | Tier A — Act now | 2027 |
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.
(3S)-1-(tert-Butoxycarbonyl)-3-hydroxypiperidine→(S)-1-tert-Butoxycarbonyl-3-(p-toluenesulfonyloxymethyl)piperidine→tert-Butyl (3S)-3-[[tert-butyl(dimethyl)silyl]oxy]piperidine-1-carboxylate→(3S)-Piperidin-3-yl 4-methylbenzenesulfonate→(3S)-3-[[tert-Butyl(dimethyl)silyl]oxy]piperidine→2-Propenoyl chloride→2-Propenoic acid→(3S)-1-Acryloylpiperidin-3-yl 4-methylbenzenesulfonate→1-[(3S)-3-[[tert-Butyl(dimethyl)silyl]oxy]piperidin-1-yl]prop-2-en-1-one→(3S)-1-Acryloylpiperidin-3-yl 4-nitrobenzenesulfonate→3-(4-Phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine
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