Patents by Inventor Henri Ramuz
Henri Ramuz 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: 4994612Abstract: Dihydropyridine derivatives of the formula ##STR1## wherein the symbols R and R.sup.1 to R.sup.6 have the significance given in claim 1, have a pronounced calcium-antagonist activity and can accordingly be used as medicaments, especially in the control or prevention of angina pectoris, ischemia, high blood pressure and/or migraine.Type: GrantFiled: April 11, 1989Date of Patent: February 19, 1991Assignee: Hoffmann-La Roche Inc.Inventors: Roland Jaunin, Henri Ramuz
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Patent number: 4981861Abstract: Tricyclic imidazole derivatives of formula I ##STR1## wherein one of R.sup.1 and R.sup.3 is lower alkyl and the other is hydrogen or lower alkyl, R.sup.2 is lower alkyl, n is the number 0 or 1, A is ##STR2## R.sup.4, R.sup.5, R.sup.6 and R.sup.7 each is lower alkyl land R.sup.8 is hydrogen nor lower alkyl,and their acid addition salts are described. These compounds are useful as agents for control or prevention of ulcers and of increaased gastric acid secretion.Type: GrantFiled: January 5, 1990Date of Patent: January 1, 1991Assignee: Hoffmann-La Roche Inc.Inventors: Albert Fischli, Anna Krasso, Henri Ramuz, Andre Szente
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Patent number: 4847273Abstract: Dihydropyridine derivatives of the formula ##STR1## wherein the symbols R and R.sup.1 to R.sup.6 have the significance given in claim 1, have a pronounced calcium-antagonist activity and can accordingly be used as medicaments, especially in the control or prevention of angina pectoris, ischemia, high blood pressure and/or migraine.Type: GrantFiled: June 5, 1986Date of Patent: July 11, 1989Assignee: Hoffmann-La Roche Inc.Inventors: Roland Jaunin, Henri Ramuz
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Patent number: 4808605Abstract: Compounds of the formula ##STR1## wherein R is lower-alkyl, R.sup.1 is halogen, R.sup.2 is C.sub.1 -C.sub.12 -alkyl, R.sup.3 is hydroxy, lower-alkoxy, lower-alkyl-carbonyloxy, lower-alkoxy-lower-alkylcarbonoyloxy, lower-alkylaminocarbonyloxy, arylaminocarbonyloxy or aryl-lower alkylaminocarbonyloxy, X is C.sub.1 -C.sub.18 -alkylene which optionally can be interrupted by 1,4-phenylene or interrupted or lengthened by 1,4-cyclohexylene, A is di- or tri-substituted 2-imidazolyl attached via an ethylene group or a substituted or unsubstituted heterocycle selected from the group consisting of benzimidazolyl, benzimidazolonyl, imidazo[4,5-c]pyridinyl, imidazo[4,5-c]pyridinonyl, benzthiazolyl, benzodiazepine-2,5-dion-1-yl and pyrrolo[2,1-c]-[1,4]benzodiazepine-5,11-dion-10-yl and n is the number 0 or 1, in the form of racemates and optical antipodes, as well as N-oxides and pharmaceutically usable acid addition salts thereof.Type: GrantFiled: November 10, 1987Date of Patent: February 28, 1989Assignee: Hoffmann-La Roche Inc.Inventors: Quirico Branca, Roland Jaunin, Hans P. Maki, Franzi Marti, Henri Ramuz
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Patent number: 4742069Abstract: Dihydropyridine derivatives of the formula ##STR1## wherein the symbols A, R and R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 are as described herein.Compounds of formula I have a pronounced calcium-antagonistic activity and can accordingly be used as medicaments, especially for the control or prevention of angina pectoris, ischemia, high blood pressure and/or migraine.Type: GrantFiled: June 17, 1985Date of Patent: May 3, 1988Assignee: Hoffmann-La Roche Inc.Inventors: Roland Jaunin, Henri Ramuz
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Patent number: 4692450Abstract: Polycyclic salts of the formulaA.sup.- XN.sup.+ CH.sub.2 --(Y).sub.n --(CH.sub.2).sub.p --(Z).sub.q --L--(T).sub.r --M IwhereinA.sup.- is the anion of a strong organic or inorganic acid;XN.sup.+ is pyridinium, pyrimidinium, thiazolium or imidazolium substituted by R.sup.1, R.sup.2 and R.sup.3 ;n, q and r individually are the integer 1 or 0 and p is an integer from 1 to 15;Y is CH.sub.2, C(H,OH) or C(O);Z is O, S, CH.sub.2, C(O), NQ.sup.1, SO.sub.2, C(O)O, OC(O), C(O)N(Q.sup.1) or N(Q.sup.1)C(O);L is p-phenylene substituted by R.sup.4 ; andM is phenyl substituted by R.sup.5 and R.sup.6,T has one of the meanings given above, for Z or is C(CH.sub.3).sub.2, C.sub.2 H.sub.4, C(Q.sup.2).dbd.C(Q.sup.3), C.tbd.C, CH.sub.2 C(O), C(O)CH.sub.2, CH.sub.2 O or OCH.sub.2,R.sup.1 is a group Ar, Ar--C.sub.1-4 -alkyl, ArO or Arc(O),Ar is phenyl substituted by R.sup.7, R.sup.8 and R.sup.9 ;R.sup.2 and R.sup.3 individually are H, C.sub.1-4 -alkyl, C.sub.1-4 -alkoxy or C.sub.6 H.sub.Type: GrantFiled: January 10, 1986Date of Patent: September 8, 1987Assignee: Hoffmann-La Roche Inc.Inventors: Jean-Marie Cassal, Albrecht Edenhofer, Henri Ramuz
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Patent number: 4680310Abstract: Tetrahydronaphthalene derivatives of the formula ##STR1## wherein Y, m, n, R and R.sup.1 to R.sup.9 are as set forth herein, are described.These compounds have a pronounced calcium-antagonistic and anti-arrhythmic activity and can accordingly be used as medicaments, especially for the control or prevention of angina pectoris, ischaemia, arrhythmias and high blood pressure. The compounds of formula I can be prepared by the amination of a compound of the formula ##STR2## with a corresponding N-methyl-phenylalkylamine and optional subsequent O-acylation. Compounds of formula II and IV are also described and are within the scope of the invention.Type: GrantFiled: October 10, 1985Date of Patent: July 14, 1987Assignee: Hoffmann-La Roche Inc.Inventors: Urs Hengartner, Henri Ramuz
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Patent number: 4675328Abstract: Polycyclic salts of the formulaA-XN+CH.sub.2 --(Y).sub.n --(CH.sub.2).sub.p --(Z).sub.q --L--(T).sub.r --M IwhereinA.sup.- is the anion of a strong organic or inorganic acid;XN.sup.+ is pyridinium, pyrimidinium, thiazolium or imidazolium substituted by R.sup.1, R.sup.2 and R.sup.3 ;n, q and r individually are the integer 1 or 0 and p is an integer from 1 to 15;Y is CH.sub.2, C(H,OH) or C(O):Z is O, S, CH.sub.2, C(O), NQ.sup.1, SO.sub.2, C(O)O, OC(O), C(O)N(Q.sup.1) or N(Q.sup.1)C(O);L is p-phenylene substituted by R.sup.4 ; andM is phenyl substituted by R.sup.5 and R.sup.6,T has one of the meanings given above, for Z or is C(CH.sub.3).sub.2, C.sub.2 H.sub.4, C(Q.sup.2).dbd.C(Q.sup.3), C.tbd.C, CH.sub.2 C(O), C(O)CH.sub.2, CH.sub.2 O or OCH.sub.2,R.sup.1 is a group Ar, Ar-C.sub.1-4 -alkyl, ArO or ArC(O),Ar is phenyl substituted by R.sup.7, R.sup.8 and R.sup.9 ;R.sup.2 and R.sup.3 individually are H, C.sub.1-4 -alkyl, C.sub.1-4 -alkoxy or C.sub.6 H.sub.Type: GrantFiled: January 15, 1986Date of Patent: June 23, 1987Assignee: Hoffmann-LaRoche Inc.Inventors: Jean-Marie Cassal, Albrecht Edenhofer, Henri Ramuz
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Patent number: 4634710Abstract: Tricyclic imidazole derivatives of formula I ##STR1## wherein one of R.sup.1 and R.sup.3 is lower alkyl and the other is hydrogen or lower alkyl, R.sup.2 is lower alkyl, n is the number 0 or 1, A is ##STR2## R.sup.4, R.sup.5, R.sup.6 and R.sup.7 each is lower alkyl and R.sup.8 is hydrogen or lower alkyl, and their acid addition salts are described. These compounds are useful as agents for control or prevention of ulcers and of increased gastric acid secretion.Type: GrantFiled: April 8, 1985Date of Patent: January 6, 1987Assignee: Hoffmann-La Roche Inc.Inventors: Albert Fischli, Anna Krasso, Henri Ramuz, Andre Szente
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Patent number: 4599347Abstract: Tricyclic imidazole derivatives of the formula ##STR1## wherein R.sup.1 is 2-pyridyl optionally substituted by lower alkyl or lower alkoxy, n is the integer 0 to 1, R.sup.2 is hydrogen or lower alkyl, R.sup.3 and R.sup.4, independently, are hydrogen or lower alkyl, A is a group of the formula ##STR2## m is the integer 2 or 3, R.sup.5, R.sup.6, R.sup.7 and R.sup.8, independently, are hydrogen or lower alkyl, and R.sup.9 is hydrogen and R.sup.10 is hydrogen or lower alkyl or R.sup.9 and R.sup.10 taken together are oxo, provided that at least one of R.sup.3 and R.sup.4 is lower alkyl when A is a group of the formula--CH.dbd.CH--CH.dbd.CH-- or --(CH.sub.2).sub.4 --,and their pharmaceutically acceptable acid addition salts. The compounds of formula I inhibit gastric acid secretion and prevent the formation of gastric ulcers.Type: GrantFiled: December 12, 1983Date of Patent: July 8, 1986Assignee: Hoffmann-La Roche Inc.Inventors: Anna Krasso, Henri Ramuz
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Patent number: 4565869Abstract: Novel pyrimidinedicarbamates of the formula ##STR1## wherein R is lower alkyl or (lower alkyloxy)-(lower alkyl) and X is a leaving group,can be manufactured by carbamoylating the corresponding free diamines. They are valuable intermediates and can be used, for example, for the manufacture of corresponding oxadiazolopyrimidines of the formula ##STR2## and pharmaceutically acceptable salts thereof. The latter have valuable long-lasting vasodilating and/or bloodpressure lowering properties and are accordingly suitable especially for the treatment of vascular-conditioned hypertensions or as vasodilators in the case of peripheral blood supply disorders.Type: GrantFiled: March 7, 1983Date of Patent: January 21, 1986Assignee: Hoffmann-La Roche Inc.Inventors: Marquard Imfeld, Henri Ramuz, Peter Vogt, Jean-Claude Muller
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Patent number: 4554280Abstract: Tricyclic imidazole derivatives of the formula ##STR1## wherein R.sup.1 is 2-pyridyl optionally substituted by lower alkyl or lower alkoxy, n is the integer 0 or 1, R.sup.2 is hydrogen or lower alkyl, R.sup.3 and R.sup.4, independently, are hydrogen or lower alkyl, A is a group of the formula ##STR2## m is the integer 2 or 3, R.sup.5, R.sup.6, R.sup.7 and R.sup.8, independently, are hydrogen or lower alkyl, and R.sup.9 is hydrogen and R.sup.10 is hydrogen or lower alkyl or R.sup.9 and R.sup.10 taken together are oxo, provided that at least one of R.sup.3 and R.sup.4 is lower alkyl when A is a group of the formula--CH.dbd.CH--CH.dbd.CH-- or --(CH.sub.2).sub.4 --,and their pharmaceutically acceptable acid addition salts. The compounds of formula I inhibit gastric acid secretion and prevent the formation of gastric ulcers.Type: GrantFiled: December 12, 1983Date of Patent: November 19, 1985Assignee: Hoffmann-La Roche Inc.Inventors: Anna Krasso, Henri Ramuz
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Patent number: 4549019Abstract: 2,4-Disubstituted 6-[3,6-dihydro-1(2H)-pyridyl]pyrimidine-3-oxides of the formula ##STR1## wherein R.sup.1 is lower alkyl or lower alkoxy-lower alkyl, R.sup.2 is hydrogen or --COOR.sup.3 wherein R.sup.3 is lower alkyl or lower alkoxy-lower alkyl,which are important for the preparation of therapeutically valuable 1,2,5,6-tetrahydropyridyl-substituted 2-oxo-2H-[1,2,4]oxadiazolopyrimidinecarbamates, are described. The foregoing oxides of formula I can be prepared by reacting the corresponding arylsulfonyloxy- or alkylsulfonyl-substituted derivatives with 1,2,5,6-tetrahydropyridine.Type: GrantFiled: July 1, 1982Date of Patent: October 22, 1985Assignee: Hoffmann-La Roche Inc.Inventors: Jean-Claude Muller, Henri Ramuz
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Patent number: 4511720Abstract: 2-Imino-imidazolidine derivatives of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are as hereinafter set forth, and pharmaceutically acceptable acid addition salts thereof, are described. The 2-imino-imidazolidine derivatives are useful in the treatment of hypertension.Type: GrantFiled: August 5, 1982Date of Patent: April 16, 1985Assignee: Hoffmann-La Roche Inc.Inventor: Henri Ramuz
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Patent number: 4435406Abstract: Tricyclic imidazole derivatives of the formula ##STR1## wherein R.sup.1 is 2-pyridyl optionally substituted by lower alkyl or lower alkoxy, n is the integer 0 or 1, R.sup.2 is hydrogen or lower alkyl, R.sup.3 and R.sup.4, independently, are hydrogen or lower alkyl, A is a group of the formula ##STR2## m is the integer 2 or 3, R.sup.5, R.sup.6, R.sup.7 and R.sup.8, independently, are hydrogen or lower alkyl, and R.sup.9 is hydrogen and R.sup.10 is hydrogen or lower alkyl or R.sup.9 and R.sup.10 taken together are oxo, provided that at least one of R.sup.3 and R.sup.4 is lower alkyl when A is a group of the formula--CH.dbd.CH--CH.dbd.CH-- or --(CH.sub.2).sub.4 --,and their pharmaceutically acceptable acid addition salts. The compounds of formula I inhibit gastric acid secretion and prevent the formation of gastric ulcers.Type: GrantFiled: August 5, 1981Date of Patent: March 6, 1984Assignee: Hoffmann-La Roche Inc.Inventors: Anna Krasso, Henri Ramuz
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Patent number: 4410698Abstract: Oxadiazolo[2,3-c]pyrimidine derivatives of the formula ##STR1## wherein R is alkyl, alkenyl, alkynyl or alkoxyalkyl, as well as their salts, are described. The compounds of formula I have valuable, long-lasting vasodilating and/or blood pressure-lowering properties and are useful for the treatment of vascular-conditioned hypertensions or as vasodilators in peripheral blood supply disorders. The compounds are prepared, inter alia, by carbamoylating the corresponding derivative containing a free amino group and optional salt formation.Type: GrantFiled: August 13, 1982Date of Patent: October 18, 1983Assignee: Hoffmann-La Roche Inc.Inventors: Urs Hengartner, Jean-Claude Muller, Henri Ramuz
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Patent number: 4366160Abstract: Imidazole derivatives of the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3, independently, are hydrogen, halogen, trifluoromethyl, nitro, lower alkyl or lower alkylthio; one of R.sup.4 and R.sup.5 is hydrogen and the other is hydrogen, halogen, hydroxy or lower alkoxy; R.sup.6 is hydrogen or lower alkyl; R.sup.7 is hydrogen, hydroxy, lower alkyl or lower alkoxy; and either R.sup.8 is hydrogen, lower alkyl, lower alkenyl, aryl(lower alkyl) or acyl and R.sup.9 taken together with R is an additional bond, or R.sup.9 is lower alkyl, lower alkenyl or aryl(lower alkyl) and R.sup.8 taken together with R is an additional bond; provided that R.sup.4 or R.sup.5 is not hydroxy when R.sup.7 is lower alkoxy and/or R.sup.8 is acyl, and that R.sup.7 is not hydroxy when R.sup.4 or R.sup.5 is lower alkoxy and/or R.sup.8 is acyl, and their pharmaceutically acceptable acid addition salts are described, the compounds of formula I have valuable therapeutic properties and are especially useful as analgesics.Type: GrantFiled: August 26, 1981Date of Patent: December 28, 1982Assignee: Hoffmann-La Roche Inc.Inventor: Henri Ramuz
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Patent number: 4360521Abstract: Oxadiazolo[2,3-c]pyrimidine derivatives of the formula ##STR1## wherein R is alkyl, alkenyl, alkynyl or alkoxyalkyl, as well as their salts, are described. The compounds of formula I have valuable, long-lasting vasodilating and/or blood pressure-lowering properties and are useful for the treatment of vascular-conditioned hypertensions or as vasodilators in peripheral blood supply disorders. The compounds are prepared, inter alia, by carbamoylating the corresponding derivative containing a free amino group and optional salt formation.Type: GrantFiled: December 4, 1982Date of Patent: November 23, 1982Assignee: Hoffmann-La Roche Inc.Inventors: Urs Hengartner, Jean-Claude Muller, Henri Ramuz
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Patent number: 4355033Abstract: 2-Imino-imidazolidine derivatives of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are as hereinafter set forth, and pharmaceutically acceptable acid addition salts thereof, are described. The 2-imino-imidazolidine derivatives are useful in the treatment of hypertension.Type: GrantFiled: August 14, 1980Date of Patent: October 19, 1982Assignee: Hoffman-La Roche Inc.Inventor: Henri Ramuz
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Patent number: 4336380Abstract: Oxadiazolotriazine derivatives of the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are as hereinafter set forth, are described.A process for preparing compounds of formula I wherein R.sup.1 is hydrogen, R.sup.2 is a group of the formula --COOR.sup.5, wherein R.sup.5 is as hereinafter set forth, and R.sup.3 is as hereinafter set forth, by cyclizing an intermediate of the formula ##STR2## wherein R.sup.3 and R.sup.5 are as hereinafter set forth, is also described. The compounds of formula I are useful in the treatment of vascular-condition hypertension or also as vasodilators in the case of peripheral blood supply disorders.Type: GrantFiled: February 17, 1981Date of Patent: June 22, 1982Assignee: Hoffmann-La Roche Inc.Inventors: Jean-Claude Muller, Henri Ramuz