Patents by Inventor Kjell A. I. Svensson
Kjell A. I. Svensson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5708018Abstract: Compounds and their pharmaceutically acceptable salts suitable for treating central nervous system disorders associated with the dopamine D3 receptor activity of Formula I: ##STR1## wherein R.sub.1 and R.sub.2 are independently chosen from hydrogen, C.sub.1 -C.sub.8 alkyl, OCH.sub.3, OH, OSO.sub.2 CF.sub.3, OSO.sub.2 CH.sub.3, SOR.sub.5, CO.sub.2 R.sub.5, CONH.sub.2, CONR.sub.5 R.sub.6, COR.sub.5, CN, SO.sub.2 NH.sub.2, SO.sub.2 NR.sub.5 R.sub.6, SO.sub.2 R.sub.5, --OCO--(C.sub.1 -C.sub.6 alkyl), --NCO--(C.sub.1 -C.sub.6 alkyl), --CH.sub.2 O--(C.sub.1 -C.sub.6 alkyl), --CH.sub.2 OH, --CO-Aryl, --NHSO.sub.2 -Aryl, --NHSO.sub.2 --(C.sub.1 -C.sub.6 alkyl), phthalimide, thiophenyl, pyrrol, pyrrolinyl, oxazolyl, or R.sub.1 and R.sub.2 together form --O(CH.sub.2).sub.1-2 O-- or --(CH.sub.2).sub.3-6 -- (except that only one of R.sub.1 and R.sub.2 can be hydrogen or OH in any such compound); R.sub.3 and R.sub.4 are independently chosen from C.sub.2 -C.sub.4 alkenyl, C.sub.3 -C.sub.8 alkynyl, C.sub.3 -C.sub.Type: GrantFiled: February 2, 1996Date of Patent: January 13, 1998Assignee: Pharmacia & Upjohn CompanyInventors: Susanne R. Haadsma-Svensson, Bengt R. Andersson, Clas A. Sonesson, Chiu-Hong Lin, R. Nicholas Waters, Kjell A. I. Svensson, Per A. E. Carlsson, Lars O. Hansson, N. Peter Stjernlof
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Patent number: 5639778Abstract: A compound of formula (I) and pharmaceutically acceptable salts thereof, where Z is R.sub.3 and X and Y form (a), or X is R.sub.3 and Y and Z form (a) or (b); R.sub.1 and R.sub.2 are independently hydrogen, C.sub.1-6 alkyl, C.sub.3-7 cycloalkyl, --CH.sub.2 --C.sub.3-7 cycloalkyl, phenyl (optionally substituted with halogen or C.sub.1-6 alkyl), -thiophenyl (optionally substituted with halogen or C.sub.1-6 alkyl), or C.sub.1-6 alkyl phenyl; R.sub.3 are independently hydrogen, halogen, --O--C.sub.1-6 alkyl or C.sub.1-6 alkyl; R.sub.4 is a valence bond, CH.sub.2 or oxygen; R.sub.5 and R.sub.6 are independently hydrogen, sulfur, --S--C.sub.1-6 alkyl, halogen, CON(R.sub.3).sub.2, --COCF.sub.3, --CO--C.sub.1-6 alkyl, --CO phenyl, oxygen, --CHO, CN except that when Y and Z form (b), R.sub.1 and R.sub.2 are hydrogen or a C.sub.1-6 alkyl and R.sub.3 is hydrogen, then at least one of R.sub.5 and R.sub.6 must be other than hydrogen.Type: GrantFiled: September 7, 1995Date of Patent: June 17, 1997Assignee: Pharmacia & Upjohn CompanyInventors: Bengt R. Andersson, Per A. E. Carlsson, Lars O. Hansson, Clas A. Sonesson, N. Peter Stjernlof, Kjell A. I. Svensson, R. Nicholas Waters, Susanne R. Haadsma-Svensson
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Patent number: 5594024Abstract: A compound or Formula I ##STR1## or a pharmaceutically acceptable salt thereof wherein n is 1 or 2; R.sup.1 and R.sup.2 are independently H (provided only one is H at the same time), --OH, CN, CH.sub.2 CN, 2- or 4-CF.sub.3, CH.sub.2 CF.sub.3, CH.sub.2 CHF.sub.2, CH.dbd.CF.sub.2, (CH.sub.2).sub.2 CF.sub.3, ethenyl, 2-propenyl, OSO.sub.2 CH.sub.3, OSO.sub.2 CF.sub.3, SSO.sub.2 CF.sub.3, COR, COOR, CON(R).sub.2, SO.sub.x CH.sub.3 (where, x is 0-2), SO.sub.x CF.sub.3, O(CH.sub.2).sub.x CF.sub.3, SO.sub.2 N(R).sub.2, CH.dbd.NOR, COCOOR, COCOON(R).sub.2, C.sub.1-8 alkyls, C.sub.3-8 cycloalkyls, CH.sub.2 OR, CH.sub.2 (R).sub.2, NRSO.sub.2 CF.sub.3, NO.sub.2, halogen, a phenyl at positions 2, 3 or 4, thienyl, furyl, pyrrole, oxazole, thiazole, N-pyrroline, triazole, tetrazole or pyridine; R.sup.3 is hydrogen, CF.sub.3, CH.sub.2 CF.sub.3, C.sub.1 -C.sub.8 alkyl, C.sub.3 -C.sub.8 cycloalkyl, C.sub.4 -C.sub.9 cycloalkyl-methyl, C.sub.2 -C.sub.8 alkenyl, C.sub.2 -C.sub.Type: GrantFiled: May 31, 1995Date of Patent: January 14, 1997Assignee: The Upjohn CompanyInventors: Kjell A. I. Svensson, Hakan V. Wikstrom, Per A. E. Carlsson, Anna M. P. Boije, R. Nicholas Waters, Clas A. Sonesson, Nils P. Stjernlof, Bengt R. Andersson, Lars O. Hansson
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Patent number: 5462947Abstract: A compound of Formula I ##STR1## or a pharmaceutically acceptable salt thereof wherein n is 1 or 2; R.sup.1 and R.sup.2 are independently H (provided only one is H at the same time), --OH, CN, CH.sub.2 CN, 2-- or 4--CF.sub.3, CH.sub.2 CF.sub.3, CH.sub.2 CHF.sub.2, CH.dbd.CF.sub.2, (CH.sub.2).sub.2 CF.sub.3, ethenyl, 2-propenyl, OSO.sub.2 CH.sub.3, OSO.sub.2 CF.sub.3, SSO.sub.2 CF.sub.3, COR, COOR, CON(R).sub.2, SO.sub.x CH.sub.3 (where, x is 0-2), SO.sub.x CF.sub.3, O(CH.sub.2).sub.x CF.sub.3, SO.sub.2 N(R).sub.2, CH.dbd.NOR, COCOOR, COCOON(R).sub.2, C.sub.1-8 alkyls, C.sub.3-8 cycloalkyls, CH.sub.2 OR, CH.sub.2 (R).sub.2, NRSO.sub.2 CF.sub.3, NO.sub.2, halogen, a phenyl at positions 2, 3 or 4, thienyl, furyl, pyrrole, oxazole, thiazole, N-pyrroline, triazole, tetrazole or pyridine; R.sup.3 is hydrogen, CF.sub.3, CH.sub.2 CF.sub.3, C.sub.1 -C.sub.8 alkyl, C.sub.3 -C.sub.8 cycloalkyl, C.sub.4 -C.sub.9 cycloalkyl-methyl, C.sub. 2 -C.sub.8 alkenyl, C.sub.2 -C.sub.Type: GrantFiled: October 12, 1993Date of Patent: October 31, 1995Assignee: The Upjohn CompanyInventors: Kjell A. I. Svensson, Hakan V. Wikstrom, Per A. E. Carlsson, Anna M. P. Boije, R. Nicholas Waters, Clas A. Sonesson, Nils P. Stjernlof, Bengt R. Andersson, Lars O. Hansson
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Patent number: 5461061Abstract: A compound of Formula I ##STR1## or pharmaceutically acceptable salts of Formula I, where R.sup.1 is H, C.sub.1 -C.sub.3 alkyl, --(CH.sub.2).sub.n CONH.sub.2 where n is 2 to 6, (CH2).sub.n -1-(4,4-dimethylpiperidine-2,6-dione-yl), or cyclopropylmethyl;R.sup.2 is hydrogen, C.sub.1 -C.sub.8 alkyl, C.sub.3 -C.sub.8 cycloalkyl or combined with R.sup.1 to form a C.sub.3 -C.sub.8 cycloalkyl, C.sub.2 -C.sub.8 alkenyl, C.sub.2 -C.sub.8 akynyl, (CH.sub.2).sub.n --X--Ar where X is O, S, or NH, 3,3,3-trifluoropropyl, --(CH.sub.2).sub.m --R.sup.9 where m is 2 or 3 and R.sup.9 is phenyl, 2-thiophenyl or 3-thiophenyl; R.sup.3 is hydrogen, C.sub.1 -C.sub.3 alkyl, 2,2,2-trifluoroethyl, 3,3,3-trifluoropropyl, formyl, CN, halogen, CH.sub.2 OR.sup.2, C(O)C(O)OR.sup.1, C(O)CO NR.sup.1 R.sup.2, --(CH.sub.2).sub.q --NR.sup.1 R.sup.2 where q is 0 to 5, C.dbd.NOR.sup.2, 2(4,5-dihydro)oxazolyl, or COR.sup.10 where R.sup.10 is H, R.sup.1, NR.sup.1 R.sup.2 or CF.sub.3 ; R.sup.4 is hydrogen, C.sub.1 -C.sub.Type: GrantFiled: October 28, 1993Date of Patent: October 24, 1995Inventors: Hakan V. Wikstrom, Per A. E. Carlsson, Bengt R. Andersson, Kjell A. I. Svensson, Stig T. Elebring, Nils P. Stjernlof, Arthur G. Romero, Susanne R. Haadsma-Svensson, Chiu-Hong Lin, Michael D. Ennis
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Patent number: 5306830Abstract: The present invention is directed to novel chromane derivatives substituted in the 3-position by a substituted amino moiety and substituted on the aromatic ring with one or two substituents. The novel chromane derivatives have useful CNS properties.Type: GrantFiled: December 21, 1992Date of Patent: April 26, 1994Assignee: The Upjohn CompanyInventors: Bengt R. Andersson, Per A. E. Carlsson, Kjell A. I. Svensson, Hakan V. Wikstrom, Anders R. Hallberg
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Patent number: 5288748Abstract: A compound of Formula I ##STR1## or pharmaceutically acceptable salts of Formula I, where R.sup.1 is H, C.sub.1 -C.sub.3 alkyl, --(CH.sub.2).sub.n CONH.sub.2 where n is 2 to 6, (CH2).sub.n -1-(4,4-dimethylpiperidine-2,6-dione-yl), or cyclopropylmethyl;R.sup.2 is hydrogen, C.sub.1 -C.sub.8 alkyl, C.sub.3 -C.sub.8 cycloalkyl or combined with R.sup.1 to form a C.sub.3 -C.sub.8 cycloalkyl, C.sub.2 -C.sub.8 alkenyl, C.sub.2 -C.sub.8 akynyl, (CH.sub.2).sub.n --R"--Ar where R" is O, S, or NH, 3,3,3-trifluoropropyl, --(CH.sub.2).sub.m --R.sup.9 where m is 2 or 3 and R.sup.9 is phenyl, 2-thienyl or 3-thienyl; R.sup.3 is hydrogen, C.sub.1 -C.sub.3 alkyl, 2,2,2-trifluoroethyl, 3,3,3-trifluoropropyl, formyl, CN, halogen, CH.sub.2 OR.sup.2, C(O)C(O)OR.sup.1, C(O)CO NR.sup.1 R.sup.2, --(CH.sub.2).sub.q --NR.sup.1 R.sup.2 where q is 0 to 5, C.dbd.NOR.sup.2, 2(4,5-dihydro)oxazolyl, or COR.sup.10 where R.sup.10 is H, R.sup.1, NR.sup.1 R.sup.2 or CF.sub.3 ; R.sup.4 is hydrogen, C.sub.1 -C.sub.3 alkyl, cyclopropylmethyl, CF.Type: GrantFiled: July 1, 1992Date of Patent: February 22, 1994Assignee: The Upjohn CompanyInventors: Hakan V. Wikstrom, Per A. E. Carlsson, Bengt R. Andersson, Kjell A. I. Svensson, Stig T. Elebring, Nils P. Stjernlof, Arthur G. Romero, Susanne R. Haadsma-Svensson, Chiu-Hong Lin, Michael D. Ennis
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Patent number: 5225596Abstract: This invention is therapeutically useful tetralins and pharmaceutically acceptable acid addition salts thereof of the formula ##STR1## wherein X.sub.1 is halogen, CF.sub.3, --OR.sub.3, or --SR.sub.4 ; wherein R.sub.3 is alkyl(C.sub.1 -C.sub.8); alkenyl(C.sub.1 -C.sub.8); --CH.sub.2 -cycloalkyl(C.sub.3 -C.sub.8) or benzyl; wherein R.sub.4 is alkyl(C.sub.1 -C.sub.3); wherein X.sub.2 is hydrogen, CF.sub.3 or halogen; wherein R.sub.7 is hydrogen or methyl; wherein R.sub.1 is hydrogen, alkyl(C.sub.1 -C.sub.3), or cyclopropylmethyl; wherein R.sub.2 is --CH.sub.2 -cycloalkyl(C.sub.3 -C.sub.8), alkyl(C.sub.1 -C.sub.8), --(CH.sub.2).sub.q --R.sub.5 or --CH.sub.2 CH.sub.2 --Z--(CH.sub.2).sub.r CH.sub.3 ; wherein R.sub.5 is phenyl, 2-thiophene or 3-thiophene; wherein Z is oxygen or sulfur; and wherein p is one or 2, q is 2 or 3, and r is zero to 3; with the provisos that (1) when X.sub.1 is --OR.sub.3, X.sub.2 is halogen or CF.sub.3 ; and (2) when X.sub.1 is halogen, X.sub.2 is hydrogen, and p is 2, X.sub.Type: GrantFiled: July 8, 1991Date of Patent: July 6, 1993Assignee: The Upjohn CompanyInventors: Per A. E. Carlsson, Hakan V. Wikstrom, Kjell A. I. Svensson, Bengt R. Andersson, Barbro A. Ekman, Nils P. Stjernlof, Nils A. Svensson
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Patent number: 5214156Abstract: This invention is therapeutically useful tetralins and pharmaceutically acceptable acid addition salts thereof of the formula ##STR1## wherein YR.sub.1 is OR.sub.1 at the 8 position where R.sub.1 is --CH.sub.2 --(C.sub.3-8 cycloalkyl);R.sub.2 is hydrogen or C.sub.1-3 alkyl;R.sub.3 is --CH.sub.2 --(C.sub.3-8 cycloalkyl);R.sub.4 is hydrogen, C.sub.1-8 alkyl, --CH.sub.2 --(C.sub.3-4 cycloalkyl), --(CH.sub.2).sub.m --R.sub.5 or --CH.sub.2 --CH.sub.2 --X--(CH.sub.2).sub.n CH.sub.3 ; n is zero to 3 and m is 2 or 3; X is oxygen or sulfur;R.sub.5 is phenyl, C.sub.1-3 alkoxy, C.sub.1-3 alkyl, 2-thiophene, 3-thiophene, or phenyl substituted with one or two substituent groups selected from chlorine, bromine or fluorine; and with the proviso that when R.sub.3 contains more than four carbon atoms and R.sub.4 is alkyl, said alkyl contains from 1 to 3 carbon atoms.Alternatively, --YR.sub.1 is --S--(C.sub.1-3 alkyl) at the 5, 6, 7 or 8 position of the aromatic ring or OR.sub.1 at the 8 position where R.sub.Type: GrantFiled: April 10, 1992Date of Patent: May 25, 1993Assignee: The Upjohn CompanyInventors: Bengt R. Andersson, Per Arvid E. Carlsson, Kjell A. I. Svensson, Hakan V. Wikstrom
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Patent number: 4612316Abstract: Compounds of the formula ##STR1## wherein C.sup.1 and N.sup.4 are in trans configuration to each other, wherein R and Y are defined herein below, as bases and pharmaceutically acceptable acid addition salts thereof, processes for their preparation and pharmaceutical preparations and methods of treatment employing such compounds. The compounds are useful for treatment of disorders in the central nervous system.Type: GrantFiled: April 19, 1984Date of Patent: September 16, 1986Assignee: Astra Lakemedel AktiebolagInventors: Bengt R. Andersson, Folke L. Arvidsson, Per A. E. Carlsson, John S. M. Hjort, Anette M. Johansson, Per L. Lindberg, John L. G. Nilsson, Domingo Sanchez, Kjell A. I. Svensson, Hakan V. Wikstrom