C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 271/40 (2006.01) A61K 31/27 (2006.01) A61K 31/34 (2006.01) A61K 31/415 (2006.01) A61K 31/44 (2006.01) A61K 31/495 (2006.01) C07C 271/44 (2006.01) C07D 213/54 (2006.01) C07D 213/79 (2006.01) C07D 233/61 (2006.01) C07D 307/24 (2006.01) C07D 521/00 (2006.01)
Patent
CA 2048099
HOE 9D/5 018 ABSTRACT p-Acylaminophenoxycarbamates and Derivatives This invention relates to p-acylaminophenoxycarbamates having the formula Image where R1 and R2 are each independently hydrogen, loweralkyl, aryl and arylloweralkyl; R3 is hydrogen, loweralkyl, arylloweralkyl; R4 is hydrogen, loweralkyl, formyl, alkylcarbonyl, arylloweralkyl, phenylcarbonyl, arylloweralkylcarbonyl, substituted phenylcarbonyl, pyridylcarbonyl, and substituted pyridylcarbonyl with the proviso that if R4 contains a carbonyl group directly attached to the oxygen of the N-O moiety, R3 cannot be hydrogen; or R3 and R4 taken together form a heterocyclic ring selected from the group consisting of imidazole or loweralkylimidazole; X is hydrogen, halogen, hydroxy, loweralkyl, loweralkoxy, nitro, amino or trifluoromethyl; and p is an integer selected from 0 and 1; the pharmaceutically acceptable acid addition salts thereof, and where applicable, the geometric and stereoisomers and racemic mixtures thereof. The compounds of this invention display utility as analgesics.
Allen Richard C.
Kosley Raymond W. Jr.
Spahl Bettina
Allen Richard C.
Bereskin & Parr
Hoechst-Roussel Pharmaceuticals Inc.
Kosley Raymond W. Jr.
Spahl Bettina
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