Abstract: There are provided novel compounds of formula (I) including their 3,4-dihydropyrimidine tautomer form, wherein R1, R2, R3, R4, R5, X and n are as defined in the specification, and optical isomers and racemates thereof and pharmaceutically acceptable salts thereof; together with processes for their preparation, compositions containing them and their use in therapy. The compounds are antagonists of N-type neuronal calcium channels useful in the treatment of cerebrovascular ischaemia and pain.

Abstract: There are provided novel compounds of formula (I) ##STR1## including their 3,4-dihydropyrimidine tautomer form, wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, X and n are as defined in the specification, and optical isomers and racemates thereof and pharmaceutically acceptable salts thereof; together with processes for their preparation, compositions containing them and their use in therapy. The compounds are antagonists of N-type neuronal calcium channels useful in the treatment of cerebrovascular ischaemia and pain.

Abstract: 4-Phenylpiperidines of the formula ##STR1## wherein R.sub.1 is hydrogen, hydroxy or lower-alkoxy;R.sub.2 is hydrogen, hydroxy, lower-alkanoyl, aroyl, lower-alkoxycarbonyl, lower-alkanoyloxy, lower-alkoxycarbonyl, or CONR.sub.3 R.sub.4 ; R.sub.3 and R.sub.4 are the same or different lower-alkyl or R.sub.3 and R.sub.4 together represent a lower-alkylene chain;X is methylene or carbonyl;Y is methylene, C.dbd.NOH, hydroxymethylene or carbonyl;or pharmaceutically acceptable acid addition salts thereof, are useful in the treatment of psychoses and other ailments of the central nervous system.

Abstract: (S)-(+)-Hydroxychloroquine substantially free of (R)-(-)-hydroxychloroquine, or a pharmaceutically acceptable acid-addition salt thereof and a method of use thereof and a composition containing it for the treatment of malaria, lupus erythematosus or rheumatoid arthritis.

Abstract: The invention is related to compounds, being useful in treating psychosis, of the formula: ##STR1## wherein: R.sup.1 is hydrogen, lower-alkyl or phenyl-lower-alkyl;R.sup.2 and R.sup.4 are the same or different lower-alkyl;R.sup.3 is hydrogen or lower-alkyl;m is two or three;n is an integer from zero to three; andR.sup.5 is hydrogen, lower-alkyl, C.sub.3 -C.sub.7 -monocyclic cycloalkyl, allyl, or propargyl;or a pharmaceutically acceptable acid-addition salt thereof.

Abstract: The invention is related to compounds, being useful in treating psychosis, of the formula: ##STR1## wherein R.sup.1 is lower-alkyl, or phenyl-lower-alkyl;R.sup.2, R.sup.3 and R.sup.4 are the same or different lower-alkyl;n is zero or one;R.sup.5 is hydrogen, lower-alkyl, C.sub.3 -C.sub.7 -monocyclic cycloalkyl, lower-alkoxy, phenyl, phenyl-lower-alkyl, phenyl-lower-alkyl in which the phenyl ring is substituted in the 2, 3, or 4-position by one to two, the same or different, halogen substituents, or R.sup.5 is a 5-membered aromatic monocyclic heterocycle selected from the group consisting of thienyl, furanyl and isoxazolyl;R.sup.6 is hydrogen or lower-alkyl; or when n is zero, R.sup.5 and R.sup.6 together are --(CH.sub.2).sub.m -- wherein m is an integer from four to six; with the proviso that when R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are methyl, n is zero and R.sup.6 is hydrogen or methyl, R.sup.5 cannot be hydrogen; further provided that when n is zero, R.sup.

Abstract: The invention is related to compounds, being useful in treating psychosis, of the formula: ##STR1## wherein: R.sup.1 is hydrogen, lower-alkyl, phenyl-lower-alkyl, C.sub.3 -C.sub.7 -monocyclic cycloalkyl-lower-alkyl, or hydroxy-C.sub.3 -C.sub.7 -monocycliccycloalkyl-lower-alkyl;R.sup.2 is lower-alkyl;R.sup.3 is hydrogen or lower-alkyl;R.sup.4 is lower-alkyl;n is an integer from zero to three; andR.sup.5 is hydroxy, lower-alkoxy, lower-alkyl, C.sub.3 -C.sub.7 -monocyclic cycloalkyl, phenyl, or a 5-membered heterocycle selected from furanyl, thienyl and isoxazolyl;with the proviso that when n is zero, R.sup.5 is other than hydroxy or a pharmaceutically acceptable acid-addition salt thereof.

Abstract: Novel substituted 2-azabicyclo[2.2.2]octane derivatives, pharmaceutical compositions containing them, methods for treating central nervous system disorders utilizing them, and processes for synthesizing them.

Abstract: Compounds of the formula ##STR1## wherein R.sub.1 is lower-alkanoyl or hydrogen;R.sub.2 and R.sub.3 are the same or different lower-alkyl; or pharmaceutically acceptable acid-addition salts thereof are useful in the treatment of disorders of the central nervous system.

Abstract: 6(eq)-R.sub.4 -1,2,3,4,5,6-Hexahydro-3-R.sub.1 -11(ax)-R.sub.3 -11(eq)-CH.sub.2 Z-2,6-methano-3-benzazocines, useful as analgesic agents and narcotic antagonists, prepared by heating, with formic acid in an organic solvent or with certain ammonium formates in the absence of a solvent, certain 1,2,3,4,4a,5,10,10a-octahydro-2,5-methanobenzo[g]quinolines.

Abstract: 6(eq)-R.sub.4 -1,2,3,4,5,6-Hexahydro-3-R.sub.1 -11(ax)-R.sub.3 -11(eq)-CH.sub.2 Z-2,6-methano-3-benzazocines, useful as analgesic agents and narcotic antagonists, prepared by heating, with formic acid in an organic solvent or with certain ammonium formates in the absence of a solvent, certain 1,2,3,4,4a,5,10,10a-octahydro-2,5-methanobenzo[g]quinolines.

Abstract: 6(eq)-R.sub.4 -1,2,3,4,5,6-Hexahydro-3-R.sub.1 -11(ax)-R.sub.3 -11(eq)-CH.sub.2 Z-2,6-methano-3-benzazocines, useful as analgesic agents and narcotic antagonists, prepared by heating, with formic acid in an organic solvent or with certain ammonium formates in the absence of a solvent, certain 1,2,3,4,4a,5,10,10a-octahydro-2,5-methanobenzo[g]quinolines.

Abstract: 1-R.sub.1 -2-Q-4a.alpha.-R.sub.3 -5.alpha.-R.sub.4 -1,2,3,4,4a,5,10,10a-Octahydro-3,5-etheno- (and 3,5-ethano) benzo[g]quinolines, useful as analgesic agents, prepared by heating, with formic acid in an organic solvent or with certain ammonium formates in the absence of a solvent, certain 1,2,3,4,4a,5,10,10a-octahydro-2,5-methanobenzo[g]quinolines, the latter prepared by acid catalyzed cyclization of a 3-benzyl-2-azabicyclo[2.2.2]oct-5-ene.

Abstract: 3-R.sub.1 -6(eq)-R.sub.4 -7-R.sub.2 "-8-R.sub.2 -9-R.sub.2 '-10-R.sub.2 "'-11(ax)-R.sub.3 -11(eq)-[CH.sub.2 CH.sub.2 CO(CH.sub.2).sub.n -(2- and 3-furyl)]-1,2,3,4,5,6-hexahydro-2,6-methano-3-benzazocines, useful as analgesics and narcotic antagonists, are prepared either by heating, with formic acid in an organic solvent or with certain ammonium formates, certain lower-alkyl 1-R.sub.1 -4a.alpha.-R.sub.3 -5.alpha.-R.sub.4 -6-R.sub.2 "-7-R.sub.2 -8-R.sub.2 '-9-R.sub.2 "'-3-[CO(CH.sub.2).sub.n -(2- and 3-furyl)]-1,2,3,4,4 a,5,10,10a-octahydro-2,5-methanobenzo[g]quinoline-3-carboxylates or by reaction of a lower-alkyl .beta.-[3-R.sub.1 -6-(eq)-R.sub.4 -7-R.sub.2 "-8-R.sub.2 -9-R.sub.2 '-10-R.sub.2 "'-11(ax)-R.sub.3 -1,2,3,4,5,6-hexahydro-2,6-methano-3-benzazocin-11(eq)-yl]propionate with 2 or 3-furylacetic acid in the presence of a strong base.

Abstract: 3-R.sub.1 -6(eq)-R.sub.4 -7-R.sub.2 "-8-R.sub.2 -9-R.sub.2 '-10-R.sub.2 '''-11(ax)-R.sub.3 -11(eq)-[CH.sub.2 CH.sub.2 CO(CH.sub.2).sub.n -(2- and 3-furyl)]-1,2,3,4,5,6-hexahydro-2,6-methano-3-benzazocines, useful as analgesics and narcotic antagonists, are prepared either by heating, with formic acid in an organic solvent or with certain ammonium formates, certain lower-alkyl 1-R.sub.1 -4a.alpha.-R.sub.3 -5.alpha.-R.sub.4 -6-R.sub.2 "-7-R.sub.2 -8-R.sub.2 '-9-R.sub.2 '''-3-[CO(CH.sub.2).sub.n -(2- and 3-furyl]-1,2,3,4,4a,5,10,10a-octahydro-2,5-methanobenzo[g]quinoline-3-carb oxylates or by reaction of a lower-alkyl .beta.-[3-R.sub.1 -6(eq)-R.sub.4 -7-R.sub.2 "-8-R.sub.2 -9-R.sub.2 '-10-R.sub.2 '''-11(ax)-R.sub.3 -1,2,3,4,5,6-hexahydro-2,6-methano-3-benzazocin-11(eq)-yl]propionate with 2- or 3-furylacetic acid in the presence of a strong base.

Abstract: 3-R.sub.1 -7-R.sub.2 "-8-R.sub.2 -9-R.sub.2 '-10-R.sub.2 "'-11(ax)-R.sub.3 -6(eq)-R.sub.4 -11(eq)-(CH.sub.2 CH.sub.2 CH.sub.2 R.sub.5)-1,2,3,4,5,6-hexahydro-2,6-methano-3-benzazocines, generally useful as morphine-like analgesics and as narcotic antagonists, are prepared by reducing, under Wolff-Kishner reaction conditions, a corresponding 3-R.sub.1 -7-R.sub.2 "-8-R.sub.2 -9-R.sub.2 '-10-R.sub.2 "'-11(ax)-R.sub.3 -6(eq)-R.sub.4 -11(eq)-(CH.sub.2 CH.sub.2 COR.sub.5)-1,2,3,4,5,6-hexahydro-2,6-methano-3-benzazocine and, if desired, cleaving a lower-alkoxy, methoxymethoxy or benzyloxy group to an hydroxy group.

Abstract: 3-R.sub.1 -6(eq)-R.sub.4 -7-R.sub.2 "-8-R.sub.2 -9-R.sub.2 '-10-R.sub.2 "'-11(ax)-R.sub.3 -11(eq)-[CH.sub.2 CH.sub.2 CO(CH.sub.2).sub.n -X-Alk]-1,2,3,4,5,6-hexahydro-2,6-methano-3-benzazocines, useful as analgesics, are prepared by heating, with formic acid in an organic solvent or with certain ammonium formates, a lower-alkyl 1-R.sub.1 -3-[Alk-X-(CH.sub.2).sub.n -CO]-4a.alpha.-R.sub.3 -5.alpha.-R.sub.4 -6-R.sub.2 "-7-R.sub.2 -8-R.sub.2 '-9-R.sub.2 "'-1,2,3,4,4a,5,10,10a-octahydro-2,5-methanobenzo[g]quinoline-3-carboxylat e.

Abstract: .beta.-[3-R.sub.1 -6(eq)-R.sub.4 -7-R.sub.2 "-8-R.sub.2 -9-R.sub.2 '-10-R.sub.2 '"-11(ax)-R.sub.3 -1,2,3,4,5,6,-hexahydro-2,6-methano-3-benzazocin-11(eq)-yl]propionic acids, esters and amides, useful as analgesics and narcotic antagonists, are prepared by heating, with formic acid in an organic solvent or with certain ammonium formates, certain di-lower-alkyl 1-R.sub.1 -4a.alpha.-R.sub.3 -5.alpha.-R.sub.4 -6-R.sub.2 "-7-R.sub.2 -8-R.sub.2 '-9-R.sub.2 "'-1,2,3,4,4a,5,10,10a-octahydro-2,5-methanobenzo[g]quinoline-3,3-dicarbox ylates, to prepare the esters, hydrolysis of the latter to prepare the acids and conversion of the acids to a mixed anhydride and reaction of the latter with ammonia or an appropriate amine to form the amides.

Abstract: 6(eq)-R.sub.4 -1,2,3,4,5,6-Hexahydro-3-R.sub.1 -11(ax)-R.sub.3 -11(eq)-CH.sub.2 Z-2,6-methano-3-benzazocines, useful as analgesic agents and narcotic antagonists, and 1-R.sub.1 -2-Q-4a.alpha.-R.sub.3 -5.alpha.-R.sub.4 -1,2,3,4,4a,5,10,10a-octahydro-3,5-etheno- (and 3,5-ethano) benzo[g]quinolines, useful as analgesic agents, prepared by heating, with formic acid in an organic solvent or with certain ammonium formates in the absence of a solvent, certain 1,2,3,4,4a,5,10,10a-octahydro-2,5-methanobenzo[g]quinolines, the latter prepared by acid catalyzed cyclization of a 3-benzyl-2-azabicyclo[2.2.2]-oct-5-ene.

Abstract: Lower-alkyl 1-R.sub.1 -3-R.sub.5 CO-4a.alpha.-R.sub.3 -5.alpha.-R.sub.4 -6-R.sub.2 "-7-R.sub.2 -8-R.sub.2 '-9-R.sub.2 '"-1,2,3,4,4a,5,10,10a-octahydro-2,5-methanobenzo[g]quinoline-3-carboxylat es, useful as intermediates for the preparation of 3-R.sub.1 -6(eq)-R.sub.4 -7-R.sub.2 "-8-R.sub.2 -9-R.sub.2 '-10-R.sub.2 '"-11(ax)-R.sub.3 -11(eq)-CH.sub.2 CH.sub.2 COR.sub.5 -1,2,3,4,5,6-hexahydro-2,6-methano-3-benzazocines, useful as analgesics and narcotic antagonists, are prepared by acylation of an appropriate lower-alkyl 1-R.sub.1 -4a.alpha.-R.sub.3 -5.alpha.C-R.sub.4 -6-R.sub.2 "-7-R.sub.2 -8-R.sub.2 '-9-R.sub.2 '"-1,2,3,4,4a,5,10,10a-octahydro-2,5-methanobenzo[g]quinoline-3-carboxylat e or carboxylation of an appropriate 1-R.sub.1 -3-COR.sub.5 "-4.alpha.-R.sub.3 -5.alpha.-R.sub.4 -6-R.sub.2 "-7-R.sub.2 -8-R.sub.2 '-9-R.sub.2 '"-1,2,3,4,4a,5,10,10a-octahydro-2,5-methanobenzo[g]quinoline.