Abstract: This invention pertains to novel N-aryl-N-[N-substituted 3-alkoxy-4-piperidinyl]amides useful as analgesics, and methods of administering analgesia, which comprises the systemic administration to mammals of such compounds, and pharmaceutical compositions containing such compounds, wherein the novel compounds have the general formula: ##STR1## including optically active isomeric forms, cis/trans isomeric forms and the pharmaceutically acceptable acid addition salts thereof, wherein:R is an aryl group selected from the group consisting of phenyl and substituted phenyl, wherein the substituents on the phenyl group are independently selected from the group consisting of halogen, lower-alkyl, lower-alkoxy, and combinations thereof;R.sub.1 is an alkyl group selected from the group consisting of lower-alkyl, lower-alkenyl, and lower-alkoxy lower-alkyl, each alkyl group having from 1 to 6 carbon atoms;R.sub.

Abstract: This invention pertains to novel substituted N-aryl-N-[4-(1-heterocyclicalkyl)piperidinyl]amides useful as analgesics, and methods of administering analgesia, which comprises the systemic administration to mammals of such compounds, and pharmaceutical compositions containing such compounds, wherein the novel compounds have the general formula: ##STR1## including optically active isomeric forms, and the pharmaceutically acceptable acid addition salts thereof, wherein R, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are defined in the disclosure.

Abstract: This invention pertains to novel N-aryl-N-[N-substituted 3-alkoxy-4-piperidinyl]amides useful as analgesics, and methods of administering analgesia, which comprises the systemic administration to mammals of such compounds, and pharmaceutical compositions containing such compounds, wherein the novel compounds have the general formula: ##STR1## including optically active isomeric forms, cis/trans isomeric forms and the pharmaceutically acceptable acid addition salts therof, wherein:R is an aryl group selected from the group consisting of phenyl and substituted phenyl, wherein the substituents on the phenyl group are independently selected from the group consisting of halogen, lower-alkyl, lower-alkoxy, and combinations thereof;R.sub.1 is an alkyl group selected from the group consisting of lower-alkyl, lower-alkenyl, and lower-alkoxy lower-alkyl, each alkyl group having from 1 to 6 carbon atoms;R.sub.

Abstract: This invention pertains to novel substituted N-aryl-N-[1-substituted 3,5-dimethyl-4-piperidinyl]amides useful as analgesics, and methods of administering analgesia, which comprises the systemic administration to mammals of such compounds, and pharmaceutical compositions containing such compounds, wherein the novel compounds have the general formula: ##STR1## including optically active isomeric forms, cis/trans isomeric forms and the pharmaceutically acceptable acid addition salts thereof, wherein:R.sub.1 is an alkyl group selected from the group consisting of lower-alkyl, and lower-alkoxy lower-alkyl, each alkyl group having from 1 to 6 carbon atoms; andR.sub.2 is a member selected from the group consisting of phenyl lower-alkyl, pyridinyl, lower-alkyl, thienyl lower-alkyl, pyrazolyl lower-alkyl, tetrazolyl lower-alkyl, 4,5-dihydro-5-oxo-1H-tetrazolyl lower-alkyl, 1,3-dihydro-1,3-dioxo-2H-isoindolyl (N-phthalimidyl) lower-alkyl, and 2,3-dihydro-2-oxo-1H-benzimidazolyl lower-alkyl.

Abstract: Compounds are disclosed of the formula ##STR1## optically active isomeric forms thereof, and/or pharmaceutically acceptable acid addition salts thereof, in which formula: R is defined in the disclosure.

Abstract: This invention pertains to novel substituted N/aryl-N-[4-(1-heterocyclicalkyl)piperidinyl]amides useful as analgesics, and methods of administering analgesia, which comprises the systemic administration to mammals of such compounds, and pharmaceutical compositions containing such compounds, wherein the novel compounds have the general formula: ##STR1## including optically active isomeric forms, and the pharmaceutically acceptable acid addition salts thereof, wherein R, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are defined in the disclosure.