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Tert-butyl (6S)-6-[5-(7-bromo-9,9-difluorofluoren-2-yl)-1H-imidazol-2-yl]-5-azaspiro[2.4]heptane-5-carboxylate
pharmaceutical intermediate
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This compound is a pharmaceutical intermediate used in the synthesis of antiviral agents. It is a stereochemically defined molecule with a methylpyrrolidine carboxylic acid core, designed for incorporation into active pharmaceutical ingredients.
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
The international HS code for (2S,5S)-1-((S)-2-((Methoxycarbonyl)amino)-3-methylbutanoyl)-5-methylpyrrolidine-2-carboxylic acid (CAS 1335316-40-9) is 2933.99.
2933.99
2933 99 80
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
(2S,5S)-1-[(2S)-2-(methoxycarbonylamino)-3-methylbutanoyl]-5-methylpyrrolidine-2-carboxylic acid
PNAXKGVRCAXIJK-GUBZILKMSA-N
C[C@H]1CC[C@H](N1C(=O)[C@H](C(C)C)NC(=O)OC)C(=O)O
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