Patents by Inventor Takashi Sasatani
Takashi Sasatani 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: 8367666Abstract: The present invention provides compounds having an agonistic activity to the cannabinoid receptor, which is represented by the formula (I): wherein R1, R2, R3, R4, and G are defined as herein, a pharmaceutically acceptable salt or a solvate thereof, and pharmaceutical compositions, atopic dermatitis treating agents, and anti-pruritus agents, especially anti-pruritus agents for oral used and for external application, which each contains the said compound as an active ingredient.Type: GrantFiled: February 28, 2012Date of Patent: February 5, 2013Assignee: Shionogi & Co., Ltd.Inventors: Takashi Sasatani, Yoshiharu Hiramatsu, Susumu Mitsumori
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Publication number: 20120208813Abstract: The present invention provides compounds having an agonistic activity to the cannabinoid receptor, which is represented by the formula (I): wherein R1, R2, R3, R4, and G are defined as herein, a pharmaceutically acceptable salt or a solvate thereof, and pharmaceutical compositions, atopic dermatitis treating agents, and anti-pruritus agents, especially anti-pruritus agents for oral used and for external application, which each contains the said compound as an active ingredient.Type: ApplicationFiled: February 28, 2012Publication date: August 16, 2012Inventors: Natsuki ISHIZUKA, Takashi SASATANI, Yoshiharu HIRAMATSU, Masanao INAGAKI, Masahide ODAN, Hiroshi HASHIZUMI, Susumu MITSUMORI, Yasuhiko FUJII, Yoshikazu FUKUI, Hideaki WATANABE, Jun SATO
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Publication number: 20080103139Abstract: The present invention provides compounds having an agonistic activity to the cannabinoid receptor, which is represented by the formula (I): wherein R1 is optionally substituted C1-C8 alkyl and the like; R2 is C1-C6 alkyl; R3 is C1-C6 alkyl and the like; or R2 and R3 taken together with may form an optionally substituted 5 to 10 membered non-aromatic carbon ring; R4 is hydrogen and the like; G is a group selected from the groups shown by the formula an the like: wherein R5 is hydrogen and the like; X1 is a single bond and the like; X2 is optionally substituted C1-C8 alkylene that may be replaced by one or two groups of —O—, or —N(R6)—, wherein R6 is hydrogen and the like, and the like; X3 is a single bond and the like; a pharmaceutically acceptable salt or a solvate thereof, and pharmaceutical compositions, atopic dermatitis treating agents, and anti-pruritus agents, especially anti-pruritus agents for oral used and for external application, which each contains the said compound as an active ingredienType: ApplicationFiled: October 28, 2005Publication date: May 1, 2008Inventors: Natsuki Ishizuka, Takashi Sasatani, Yoshiharu Hiramatsu, Masanao Inagaki, Masahide Odan, Hiroshi Hashizume, Susumu Mitsumori, Yasuhiko Fujii, Yoshikazu Fukui, Hideaki Watanabe, Jun Sato
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Publication number: 20050043387Abstract: Having an affinity against serotonine receptors, compound (I) shown below is useful as a therapeutic agent against various kinds of diseases of central nervous systems.Type: ApplicationFiled: September 23, 2004Publication date: February 24, 2005Inventors: Yoshikazu Fukui, Makoto Adachi, Takashi Sasatani
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Patent number: 6858640Abstract: Having an affinity against serotonine receptors, compound (I) shown below is useful as a therapeutic agent against various kinds of diseases of central nervous systems; (wherein R1 is hydrogen; R2 is hydrogen or lower alkyl; R3 is hydrogen, —COOR12 and so on; R4 is hydrogen, lower alkyl and so on, or R3 and R4 taken together may form ?O or ?S; R5 is hydrogen, or R3 and R5 taken together may form a bond; R6 is hydrogen, —COOR24 and so on; R7 is hydrogen, halogen, lower alkyl and so on; R8 is hydrogen, lower alkyl, cycloalkyl and so on; R9, R10 and R11 are each independently hydrogen, halogen, lower alkyl and so on).Type: GrantFiled: September 17, 2001Date of Patent: February 22, 2005Assignee: Shionogi & Co., Ltd.Inventors: Yoshikazu Fukui, Makoto Adachi, Takashi Sasatani
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Publication number: 20030236295Abstract: Having an affinity against serotonine receptors, compound (I) shown below is useful as a therapeutic agent against various kinds of diseases of central nervous systems.Type: ApplicationFiled: December 31, 2002Publication date: December 25, 2003Inventors: Yoshikazu Fukui, Makoto Adachi, Takashi Sasatani
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Patent number: 5461062Abstract: A compound of the formula: ##STR1## wherein R is an optionally substituted phenyl group, 5-membered; the A ring is a 5 to 7 membered alicyclic group in which said A ring may have an alkyl group as a substituent, or a pharmaceutically acceptable salt thereof, and is useful as a psychotropic agent.Type: GrantFiled: August 30, 1994Date of Patent: October 24, 1995Assignee: Shionogi & Co., Ltd.Inventors: Susumu Takada, Takashi Sasatani, Nobuo Chomei, Makoto Adachi, Akira Matsushita
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Patent number: 5378848Abstract: A compound of the formula: ##STR1## wherein R is an optionally substituted aryl group or an optionally substituted aromatic heterocycle group; A ring is a 5 to 9 membered alicyclic group, in which one or more of carbon atoms constituting said A ring may be replaced by O, or S and said A ring may have alkyl as a substituent, or a pharmaceutically acceptable salt thereof.Type: GrantFiled: February 2, 1993Date of Patent: January 3, 1995Assignee: Shionogi & Co., Ltd.Inventors: Susumu Takada, Takashi Sasatani, Nobuo Chomei, Makoto Adachi, Akira Matsushita
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Patent number: 4940714Abstract: 2-Substituted carbonylimidazo[4,5-c]quinolines of formula: ##STR1## having a high affinity for benzodiazepin receptor and showing an excellent psychostimulating action orally at a dose of 0.1-500 mg are provided through several routes.Type: GrantFiled: February 14, 1989Date of Patent: July 10, 1990Assignee: Shionogi & Co., Ltd.Inventors: Susumu Takada, Toshio Fujishita, Takashi Sasatani, Akira Matsushita, Masami Eigyo
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Patent number: 4910318Abstract: Tetrahydrothiopyrano[3,2-b]indole derivatives represented by the formula I: ##STR1## wherein R.sup.1 is hydrogen, C.sub.1-4 alkyl, C.sub.2-4 alkenyl, C.sub.2-4 alkynyl, phenyl-C.sub.1-4 alkyl, C.sub.2-5 alkanoyl, or ##STR2## wherein Y is C.sub.1-4 alkylene or C.sub.1-4 oxoalkylene and R.sup.5 and R.sup.6 each is hydrogen or C.sub.1-4 alkyl;R.sup.2 is hydrogen, C.sub.1-4 alkyl or C.sub.3-6 cycloalkyl;R.sup.3 is hydrogen, C.sub.1-4 alkyl or ##STR3## wherein Y, R.sup.5 and R.sup.6 each is as defined above; or ##STR4## is pyrrolidino, piperdinyl, piperazinyl, 4-C.sub.1-4 alkylpiperazinyl or morpholino;R.sup.4 is hydrogen or C.sub.1-4 alkyl; andn is 0 or an integer of 1 or 2and the pharmaceutically acceptable salts being useful as analgesic and anti-inflammatory agents as well as psychoanaleptic and nootropic drug.Type: GrantFiled: July 25, 1984Date of Patent: March 20, 1990Assignee: Shionogi & Co., Ltd.Inventors: Yasuo Makisumi, Takashi Sasatani
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Patent number: 4753951Abstract: A compound of the formula: ##STR1## (wherein R is phenyl optionally substituted by one or two members selected from the group consisting of trifluoromethyl, C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy, C.sub.1 -C.sub.5 alkylthio, nitro, amino C.sub.1 -C.sub.5 alkanoylamino and C.sub.1 -C.sub.5 alkoxycarbonyl or 5- or 6-membered heterocyclic group optionally substituted by one or two members selected from the group consisting of halogen, C.sub.1 -C.sub.5 alkyl and C.sub.1 -C.sub.5 alkoxy,Q is hydrogen, C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.10 acyl, C.sub.1 -C.sub.5 alkylsulfonyl or C.sub.6 -C.sub.10 arylsulfonyl, ##STR2## R.sup.1, R.sup.2, R.sup.3, and R.sup.4 each is hydrogen, halogen C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy or C.sub.1 -C.sub.Type: GrantFiled: October 17, 1986Date of Patent: June 28, 1988Assignee: Shionogi & Co., Ltd.Inventors: Susumu Takada, Toshio Fujishita, Takashi Sasatani, Akira Matsushita, Masami Eigyo
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Patent number: 4690930Abstract: Compounds of the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each is hydrogen, alkyl, alkoxycarbonyl, carboxy, halogen, nitro or trifluoromethyl, or R.sup.1 and R.sup.2 taken together may form alkylene; R.sup.3 is hydrogen, alkyl, alkanoyl or alkylsulfonyl; R.sup.4 is hydrogen, alkoxycarbonyl, carboxy or halogen; X is hydrogen, alkyl, alkoxy, halogen or hydroxy; and Y is methine or nitrogen or salts thereof are provided. The compounds (I) show potent psychotropic activity.Type: GrantFiled: November 5, 1985Date of Patent: September 1, 1987Assignee: Shionogi & Co., LtdInventors: Susumu Takada, Takashi Sasatani, Hirohisa Shindo, Akira Matsushita, Masami Eigyo
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Patent number: 4256640Abstract: Tetrahydrothiopyrano[2,3-b]indole derivative represented by the formula I: ##STR1## wherein R.sup.1 is hydrogen, alkyl, hydroxyalkyl, alkenyl, aralkyl, aryl, --COR.sup.5 (wherein R.sup.5 is alkyl, alkenyl, aryl or alkoxy) or ##STR2## (wherein Y is alkylene, oxoalkylene, hydroxyalkylene and R.sup.6 and R.sup.7 are each hydrogen or alkyl): R.sup.2 is hydrogen or alkyl; R.sup.3 is hydrogen, alkyl, hydroxyalkyl, alkenyl, aralkyl, aryl or dialkylaminoalkyl or ##STR3## is pyrrolidino, piperidino, piperazino, 4-alkylpiperazino, 4-arylpiperazino or morpholino; R.sup.4 is hydrogen or alkyl; A is methylene, alkylmethylene, ethylene, alkylethylene; X is hydrogen or one or two groups selected from the group consisting of halogen, alkyl, alkoxy, hydroxy and halogenoalkyl; and n is an integer of 0 to 2 and its pharmaceutically acceptacle salts; synthesized from 2-propargylthioindole or 2-(4-hydroxy-2-butynylthio)-indole; useful as analgesic and anti-inflammatory agent.Type: GrantFiled: May 15, 1979Date of Patent: March 17, 1981Assignee: Shionogi & Co., Ltd.Inventors: Yasuo Makisumi, Susumu Takada, Takashi Sasatani, Natsuki Ishizuka
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Patent number: 4200757Abstract: 3-Aminoisoxazoles of the formula: ##STR1## (wherein R is C.sub.1 -C.sub.6 alkyl, phenyl or halo-phenyl) are prepared by reacting a .beta.-ketonitrile of the formula:R--CO--CH.sub.2 CN(wherein R is as defined above) with a compound of the formula:HY(wherein Y is C.sub.1 -C.sub.6 alkoxy or C.sub.1 -C.sub.6 alkylthio) in the presence of an acid in a solvent to give an iminium salt of the formula: ##STR2## (wherein X is the residue of said acid; R and Y are each as defined above) and further reacting the iminium salt with hydroxylamine in an inert solvent.Type: GrantFiled: June 5, 1978Date of Patent: April 29, 1980Assignee: Shionogi & Co., Ltd.Inventors: Yasuo Makisumi, Akira Murabayashi, Takashi Sasatani
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Patent number: 4183856Abstract: Urea derivatives of the formula ##STR1## (wherein Ar represents a residue of 5- or 6-membered heteroaromatic ring; R represents a hydrogen atom or a C.sub.1 -C.sub.6 alkyl group; R.sup.1 represents a C.sub.1 -C.sub.6 alkyl group; and R.sup.2 represents a C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 alkenyl, or C.sub.1 -C.sub.6 alkoxy group) are produced by reacting an amine of the formulaAr--NH--R(wherein Ar and R have the significance given above) with a carbamoyl halogenide of the formula ##STR2## (wherein X represents a halogen atom, and R.sup.1 and R.sup.2 have the significance given above) in the presence of a Lewis acid in an inert solvent.Type: GrantFiled: April 10, 1978Date of Patent: January 15, 1980Assignee: Shionogi & Co., Ltd.Inventors: Yasuo Makisumi, Takashi Sasatani, Akira Murabayashi