Diclofensine
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Chemical compound
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Diclofensine (Ro 8-4650) was developed by
Diclofensine is chemically a tetrahydroisoquinoline (THIQ) derivative, as is nomifensine.
Synthesis
The condensation of m-anisaldehyde [591-31-1] (1) with methylamine gives N-methyl-3-methoxybenzenemethanimine [16928-30-6]. Reduction of this Schiff-base intermediate with sodium borohydride gives (3-methoxybenzyl)methylamine [41789-95-1] (2). Alkylation of this with 3,4-dichlorophenacylbromide [2632-10-2] (3) would give CID:59580342 (4). Reduction of the benzoyl ketone with sodium borohydride gives the alcohol [802051-24-7] (5). Acid catalyzed intramolecular cyclization then completes the synthesis of the 4-aryl-THIQ derivative, diclofensine (6).
See also
References
- ^ US Patent 3947456 A, Alfred Rheiner, "Substituted 4-Phenyl Isoquinolines", published 1976-03-30, assigned to Hoffman-La Roche Inc.
- ISBN 978-0-8493-9140-8.)
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: CS1 maint: location (link - PMID 6979165.
- PMID 7107085.
- PMID 2968488.
- S2CID 34977195.
- PMID 2530094.
- S2CID 41618656.
- PMID 6379345.
- S2CID 36360683.
- PMID 6860528.
- S2CID 25043692.
- PMID 7589207.
- ^ Rheiner Alfred Jr Dr, CH 538477 (1973 to Hoffmann La Roche).
- ^ Alfred Rheiner, U.S. patent 3,947,456 (1976 to Hoffman-La Roche Inc.).
- ^ Shuang Liu, Bruce F. Molino, Kassoum Nacro, WO 2010132442 (2010 to Albany Molecular Reserch, Inc.). Page column 32.
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- #WHO-EM
- ‡Withdrawn from market
- Clinical trials:
- †Phase III
- §Never to phase III