C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 213/64 (2006.01) C07F 7/10 (2006.01)
Patent
CA 2332188
There are described compounds and methods of preparation of the formulae Image where n is 1, 2 cr 3: R3 is hydrogen or loweralkyl; R4 is hydrogen or loweralkyl; R9 is hydrogen, lowexalkyl or arylloweralkyl; and Ar is a phenyl group optionally mono-substituted with a loweralkyl, loweralkoxy, halogen or trifluoromethyl group; wherein these compounds are useful as intermediates in the production of compounds for use as analgesic agents and for treatment of various memory dysfunctions. Methods for preparing these intermediates are described.
Effland Richard Charles
Fink David Marc
Aventis Holdings Inc.
Hoechst Marion Roussel Inc.
Mckay-Carey & Company
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