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CAS 941290-06-8
1-((S)-1-amino-1-oxobutan-2-yl)-2-oxo-5-propylpyrrolidine-3-carboxylic acid
Codes：BRIV-026
Application context (from source-drug indications)
癫痫部分性发作布瓦西坦癫痫布瓦西坦癫痫发作布瓦西坦
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| 布瓦西坦Brivaracetam | Tier C — Watch / trade | 2028 |
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.
(S)-2-aminobutanamide→(S)-2-((R)-2-oxo-4-propylpyrrolidin-1-yl)butanamide→pent-1-ene→(R)-pentane-1,2-diol→(4R)-4-propyl-1,3,2-dioxathiolane 2-oxide→(R)-4-propyl-1,3,2-dioxathiolane 2,2-dioxide→dimethyl malonate→(R)-dimethyl 2-propylcyclopropane-1,1-dicarboxylate→(R)-2-propylcyclopropane-1,1-dicarboxylic acid→(R)-6,6-dimethyl-1-propyl-5,7-dioxaspiro[2.5]octane-4,8-dione→(4R)-1-((S)-1-amino-1-oxobutan-2-yl)-2-oxo-4-propylpyrrolidine-3-carboxylic acid→1-((S)-1-amino-1-oxobutan-2-yl)-2-oxo-5-propylpyrrolidine-3-carboxylic acid→(4R)-methyl 1-((S)-1-amino-1-oxobutan-2-yl)-2-oxo-4-propylpyrrolidine-3-carboxylate→methyl 1-((S)-1-amino-1-oxobutan-2-yl)-2-oxo-5-propylpyrrolidine-3-carboxylate→(2S)-2-(2-oxo-5-propylpyrrolidin-1-yl)butanamide
Intermediates available on this site
Side-by-side comparison of all listed offers on this CAS; price bands are list-price ranges, final price subject to RFQ confirmation.
| Supplier | Product | Price band | MOQ | Lead time | Qualifications |
|---|---|---|---|---|---|
| Unibest Taizhou GMP-like Site | Brivaracetam Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
| Qualified Partner — East China API Works | (+)-(R)-4-propyl-4,5-dihydrofuran-2(3H)-one Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
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.