Patents by Inventor Ayumu Kurimoto
Ayumu Kurimoto 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: 8969362Abstract: The present invention provides an 8-oxoadenine compound having immunomodulating activities such as an interferon inducing activity and useful as an antiviral agent and antiallergic agent, which is represented by the following formula (1): [wherein the ring A represents a 6-10 membered aromatic carbocyclic ring and the like, R represents a halogen atom, an alkyl group and the like, n represents an integer of 0-2, Z1 represents alkylene, X2 represents oxygen atom, sulfur atom, SO2, NR5, CO, CONR5, NR5CO and the like, Y1, Y2 and Y3 represent independently a single bond or an alkylene group, X1 represents oxygen atom, sulfur atom, NR4 (R4 is hydrogen atom or an alkyl group) or a single bond, R2 represents a substituted or unsubstituted alkyl group, R1 represents hydrogen atom, hydroxy group, an alkoxy group, an alkoxycarbonyl group or a haloalkyl group] or its pharmaceutically acceptable salt.Type: GrantFiled: October 21, 2013Date of Patent: March 3, 2015Assignees: AstraZeneca Aktiebolag, Sumitomo Dainippon Pharma Co., Ltd.Inventors: Ayumu Kurimoto, Kazuki Hashimoto, Yoshiaki Isobe, Stephen Brough, Ian Millichip, Hiroki Wada, Roger Bonnert, Thomas Mcinally
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Patent number: 8865896Abstract: A method for producing adenine compound (1): wherein m and n are independently an integer of 2 to 5, R1 is C1-6 alkyl group, R2 and R3 are the same or different, and hydrogen atom, or C1-6 alkyl group, or R2 and R3 are combined with an adjacent nitrogen atom to form pyrrolidine, morpholine, piperidine, piperazine, etc., and R4 is C1-3 alkyl group, which comprises a step of reacting compound (2): and compound (3): in the presence of a boron-containing reducing agent.Type: GrantFiled: January 16, 2009Date of Patent: October 21, 2014Assignees: Astrazeneca Aktiebolag, Dainippon Sumitomo Pharma Co., Ltd.Inventors: Kazuki Hashimoto, Wataru Katoda, Kazuhiko Takahashi, Ayumu Kurimoto
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Publication number: 20140045837Abstract: The present invention provides an 8-oxoadenine compound having immunomodulating activities such as an interferon inducing activity and useful as an antiviral agent and antiallergic agent, which is represented by the following formula (1): [wherein the ring A represents a 6-10 membered aromatic carbocyclic ring and the like, R represents a halogen atom, an alkyl group and the like, n represents an integer of 0-2, Z1 represents alkylene, X2 represents oxygen atom, sulfur atom, SO2, NR5, CO, CONR5, NR5CO and the like, Y1, Y2 and Y3 represent independently a single bond or an alkylene group, X1 represents oxygen atom, sulfur atom, NR4 (R4 is hydrogen atom or an alkyl group) or a single bond, R2 represents a substituted or unsubstituted alkyl group, R1 represents hydrogen atom, hydroxy group, an alkoxy group, an alkoxycarbonyl group or a haloalkyl group] or its pharmaceutically acceptable salt.Type: ApplicationFiled: October 21, 2013Publication date: February 13, 2014Applicants: AstraZeneca Aktiebolag, Dainippon Sumitomo Pharma Co., Ltd.Inventors: Ayumu Kurimoto, Kazuki Hashimoto, Yoshiaki Isobe, Stephen Brough, Ian Millichip, Hiroki Wada, Roger Bonnert, Thomas Mcinally
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Patent number: 8575180Abstract: The present invention provides an 8-oxoadenine compound having immunemodulating activities such as an interferon inducing activity and useful as an antiviral agent and antiallergic agent, which is represented by the following formula (1): [wherein the ring A represents a 6-10 membered aromatic carbocyclic ring and the like, R represents a halogen atom, an alkyl group and the like, n represents an integer of 0-2, Z1 represents alkylene, X2 represents oxygen atom, sulfur atom, SO2, NR5, CO, CONR5, NR5CO and the like, Y1, Y2 and Y3 represent independently a single bond or an alkylene group, X1 represents oxygen atom, sulfur atom, NR4 (R4 is hydrogen atom or an alkyl group) or a single bond, R2 represents a substituted or unsubstituted alkyl group, R1 represents hydrogen atom, hydroxy group, an alkoxy group, an alkoxycarbonyl group or a haloalkyl group] or its pharmaceutically acceptable salt.Type: GrantFiled: July 20, 2011Date of Patent: November 5, 2013Assignees: AstraZeneca Aktiebolag, Dainippon Sumitomo Pharma Co., Ltd.Inventors: Ayumu Kurimoto, Kazuki Hashimoto, Yoshiaki Isobe, Stephen Brough, Ian Millichip, Hiroki Wada, Roger Bonnert, Thomas Mcinally
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Publication number: 20120178743Abstract: An antiallergic agent for topical administration containing an adenine compound of general formula (1): [wherein ring A represents a 6 to 10 membered, mono or bicyclic, aromatic hydrocarbon or a 5 to 10 membered, mono or bicyclic, aromatic heterocycle containing one to three heteroatoms selected among 0 to 2 nitrogen atoms, 0 or 1 oxygen atom, and 0 or 1 sulfur atom; n is an integer of 0 to 2; m is an integer of 0 to 2; R represents halogeno, (un)substituted alkyl, etc.; X1 represents oxygen, sulfur, NR1 (R1 represents hydrogen or alkyl), or a single bond; Y1 represents a single bond, alkylene, etc.; Y2 represents a single bond, alkylene, etc.; Z represents alkylene; and at least one of Q1 and Q2 represents —COOR10 (wherein R10 represents (un)substituted alkyl, etc.), etc.] or a pharmaceutically acceptable salt of the compound.Type: ApplicationFiled: February 22, 2012Publication date: July 12, 2012Applicant: Dainippon Sumitomo Pharma Co., Ltd.Inventors: Yoshiaki ISOBE, Haruo Takaku, Haruhisa Ogita, Masanori Tobe, Ayumu Kurimoto, Tetsuhiro Ogino, Hitoshi Fujita
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Patent number: 8148371Abstract: A drug for topically administration which is effective as an antiallergic agent. The drug for topically administration contains as an active ingredient an adenine compound represented by the general formula (1): [wherein ring A represents a 6 to 10 membered, mono or bicyclic, aromatic hydrocarbon or a 5 to 10 membered, mono or bicyclic, aromatic heterocycle containing one to three heteroatoms selected among 0 to 2 nitrogen atoms, 0 or 1 oxygen atom, and 0 or 1 sulfur atom; n is an integer of 0 to 2; m is an integer of 0 to 2; R represents halogeno, (un)substituted alkyl, etc.; X1 represents oxygen, sulfur, NR1 (R1 represents hydrogen or alkyl), or a single bond; Y1 represents a single bond, alkylene, etc.; Y2 represents a single bond, alkylene, etc.; Z represents alkylene; and at least one of Q1 and Q2 represents —COOR10 (wherein R10 represents (un)substituted alkyl, etc.), etc.] or a pharmaceutically acceptable salt of the compound.Type: GrantFiled: June 3, 2010Date of Patent: April 3, 2012Assignee: Dainippon Sumitomo Pharma Co., Ltd.Inventors: Yoshiaki Isobe, Haruo Takaku, Haruhisa Ogita, Masanori Tobe, Ayumu Kurimoto, Tetsuhiro Ogino, Hitoshi Fujita
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Publication number: 20110306610Abstract: The present invention provides an 8-oxoadenine compound having immunemodulating activities such as an interferon inducing activity and useful as an antiviral agent and antiallergic agent, which is represented by the following formula (1): [wherein the ring A represents a 6-10 membered aromatic carbocyclic ring and the like, R represents a halogen atom, an alkyl group and the like, n represents an integer of 0-2, Z1 represents alkylene, X2 represents oxygen atom, sulfur atom, SO2, NR5, CO, CONR5, NR5CO and the like, Y1, Y2 and Y3 represent independently a single bond or an alkylene group, X1 represents oxygen atom, sulfur atom, NR4 (R4 is hydrogen atom or an alkyl group) or a single bond, R2 represents a substituted or unsubstituted alkyl group, R1 represents hydrogen atom, hydroxy group, an alkoxy group, an alkoxycarbonyl group or a haloalkyl group] or its pharmaceutically acceptable salt.Type: ApplicationFiled: July 20, 2011Publication date: December 15, 2011Applicants: AstraZeneca Aktiebolag, Dainippon Sumitomo Pharma Co., Ltd.Inventors: Ayumu KURIMOTO, Kazuki Hashimoto, Yoshiaki Isobe, Stephen Brough, Ian Millichip, Hiroki Wada, Roger Bonnert, Thomas Mcinally
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Patent number: 8012964Abstract: The present invention provides an 8-oxoadenine compound having immunemodulating activities such as an interferon inducing activity and useful as an antiviral agent and antiallergic agent, which is represented by the following formula (1): [wherein the ring A represents a 6-10 membered aromatic carbocyclic ring and the like, R represents a halogen atom, an alkyl group and the like, n represents an integer of 0-2, Z1 represents alkylene, X2 represents oxygen atom, sulfur atom, SO2, NR5, CO, CONR5, NR5CO and the like, Y1, Y2 and Y3 represent independently a single bond or an alkylene group, X1 represents oxygen atom, sulfur atom, NR4 (R4 is hydrogen atom or an alkyl group) or a single bond, R2 represents a substituted or unsubstituted alkyl group, R1 represents hydrogen atom, hydroxy group, an alkoxy group, an alkoxycarbonyl group or a haloalkyl group] or its pharmaceutically acceptable salt.Type: GrantFiled: March 24, 2005Date of Patent: September 6, 2011Assignees: Dainippon Sumitomo Pharma Co., Ltd., Astrazeneca AktiebolagInventors: Ayumu Kurimoto, Yoshiaki Isobe, Stephen Brough, Hiroki Wada, Roger Bonnert, Thomas McInally
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Publication number: 20110054168Abstract: A method for preparing compound (4): wherein m and n are independently an integer of 2 to 5, R1 is C1-6 alkyl group, R2 and R3 are combined with an adjacent nitrogen atom to form pyrrolidine, morpholine, thiomorpholine, etc., and R4 is C1-3 alkyl group, or a pharmaceutically acceptable salt, which is useful as a medicament, which comprises step (a) for preparing compound (2): wherein m, n, R1, R2 and R3 are the same as defined above, or its salt which comprises subjecting compound (1): wherein k is an integer of 1 or 2, R is hydrogen atom, halogen atom, etc., or a salt thereof to debenzylation reaction, and then step (b) for preparing compound (4) or a pharmaceutically acceptable salt which comprises reacting compound (2) or its salt prepared in the above step (a) or salt thereof and compound (3): wherein R4 is C1-3 alkyl group, in the presence of a boron-containing reducing agent.Type: ApplicationFiled: January 16, 2009Publication date: March 3, 2011Inventors: Ayumu Kurimoto, Wataru Katoda, Kazuki Hashimoto, Kazuhiko Takashi
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Publication number: 20110046369Abstract: A method for producing adenine compound (1): wherein m and n are independently an integer of 2 to 5, R1 is C1-6 alkyl group, R2 and R3 are the same or different, and hydrogen atom, or C1-6 alkyl group, or R2 and R3 are combined with an adjacent nitrogen atom to form pyrrolidine, morpholine, piperidine, piperazine, etc., and R4 is C1-3 alkyl group, which comprises a step of reacting compound (2): and compound (3): in the presence of a boron-containing reducing agent.Type: ApplicationFiled: January 16, 2009Publication date: February 24, 2011Applicants: DAINIPPON SUMITOMO PHARMA CO., LTD., ASTRAZENECA AKTIEBOLAGInventors: Kazuki Hashimoto, Wataru Katoda, Kazuhiko Takahashi, Ayumu Kurimoto
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Publication number: 20100256118Abstract: A drug for topically administration which is effective as an antiallergic agent. The drug for topically administration contains as an active ingredient an adenine compound represented by the general formula (1): [wherein ring A represents a 6 to 10 membered, mono or bicyclic, aromatic hydrocarbon or a 5 to 10 membered, mono or bicyclic, aromatic heterocycle containing one to three heteroatoms selected among 0 to 2 nitrogen atoms, 0 or 1 oxygen atom, and 0 or 1 sulfur atom; n is an integer of 0 to 2; m is an integer of 0 to 2; R represents halogeno, (un)substituted alkyl, etc.; X1 represents oxygen, sulfur, NR1 (R1 represents hydrogen or alkyl), or a single bond; Y1 represents a single bond, alkylene, etc.; Y2 represents a single bond, alkylene, etc.; Z represents alkylene; and at least one of Q1 and Q2 represents —COOR10 (wherein R10 represents (un)substituted alkyl, etc.), etc.] or a pharmaceutically acceptable salt of the compound.Type: ApplicationFiled: June 3, 2010Publication date: October 7, 2010Applicant: Dainippon Sumitomo Pharma Co.,Ltd.Inventors: Yoshiaki ISOBE, Haruo Takaku, Haruhisa Ogita, Masanori Tobe, Ayumu Kurimoto, Tetsuhiro Ogino, Hitoshi Fujita
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Patent number: 7754728Abstract: A drug for topically administration which is effective as an antiallergic agent. The drug for topically administration contains as an active ingredient an adenine compound represented by the general formula (1): [wherein ring A represents a 6 to 10 membered, mono or bicyclic, aromatic hydrocarbon or a 5 to 10 membered, mono or bicyclic, aromatic heterocycle containing one to three heteroatoms selected among 0 to 2 nitrogen atoms, 0 or 1 oxygen atom, and 0 or 1 sulfur atom; n is an integer of 0 to 2; m is an integer of 0 to 2; R represents halogeno, (un)substituted alkyl, etc.; X1 represents oxygen, sulfur, NR1 (R1 represents hydrogen or alkyl), or a single bond; Y1 represents a single bond, alkylene, etc.; Y2 represents a single bond, alkylene, etc.; Z represents alkylene; and at least one of Q1 and Q2 represents —COOR10 (wherein R10 represents (un)substituted alkyl, etc.), etc.] or a pharmaceutically acceptable salt of the compound.Type: GrantFiled: September 26, 2003Date of Patent: July 13, 2010Assignee: Dainippon Sumitomo Pharma Co., Ltd.Inventors: Yoshiaki Isobe, Haruo Takaku, Haruhisa Ogita, Masanori Tobe, Ayumu Kurimoto, Tetsuhiro Ogino, Hitoshi Fujita
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Publication number: 20090192153Abstract: An adenine compound or its pharmaceutically acceptable salt as a medicament as shown following formula (1): wherein R1 is optionally substituted alkyl group, etc., X is oxygen atom, etc., A is 4 to 8 membered optionally substituted saturated or unsaturated heterocyclic group containing 1 to 2 hetero atoms selected from 1 to 3 nitrogen atoms, 0 to 1 oxygen atom and 0 to 1 sulfur atom, L1 and L2 are independently straight or branched chain alkylene, or a single bond, R2 is optionally substituted alkyl group, etc.Type: ApplicationFiled: September 21, 2006Publication date: July 30, 2009Applicants: Dainippon Sumitomo Pharma Co., Ltd. a corporation of Japan, AstraZeneca Aktiebolag A corporation of SwedenInventors: Kazuki Hashimoto, Tomoaki Nakamura, Kei Nakamura, Ayumu Kurimoto, Yoshiaki Isobe, Haruhisa Ogita, Ian Millichip, Thomas Mcinally, Roger Bonnert
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Publication number: 20090118263Abstract: An adenine compound represented by the formula (1): (1) [wherein A1 and A2 each independently represents an (un)substituted aromatic carbocycle or (un)substituted aromatic heterocycle; L1, L2, and L3 each independently represents alkylene or a single bond, provided that any methylene or methine group in L2 or L3 may be bonded to the nitrogen atom adjacent to L2 and L3 to form a 4- to 7-membered saturated nitrogenous heterocycle; L4 represents alkylene or a single bond; R1 represents (un)substituted alkyl, (un)substituted aryl, etc.; R2 represents hydrogen or (un)substituted alkyl; R3 represents (un)substituted alkyl, etc.; and X represents oxygen, etc.] or a pharmaceutically acceptable salt of the compound. The compound and salt are useful as a medicine.Type: ApplicationFiled: September 20, 2006Publication date: May 7, 2009Applicants: Dainippon Sumitomo Pharma Co., Ltd., ASTRAZENECA AKTIEBOLAGInventors: Kazuki Hashimoto, Tomoaki Nakamura, Kei Nakamura, Ayumu Kurimoto, Yoshiaki Isobe
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Publication number: 20090105212Abstract: A novel adenine compound represented by the formula (1): wherein A represents an (un)substituted aromatic carbocycle or (un)substituted aromatic heterocycle; L1, L2, and L3 each independently represents linear or branched alkylene, etc.; R1 represents (un)substituted alkyl, (un)substituted aryl, etc.; R2 represents hydrogen or (un) substituted alkyl; R3 represents (un)substituted alkyl, etc., provided that R3 may be bonded to L2 or L3 to form a nitrogenous saturated heterocycle; and X represents oxygen, etc.; or a pharmaceutically acceptable salt of the compound. The compound and salt are useful as a medicine.Type: ApplicationFiled: September 22, 2006Publication date: April 23, 2009Applicants: Dainippon Sumitomo Pharma Co., Ltd. a corporation of Japan, AstraZeneca Aktiebolag a corporation of SwedenInventors: Yoshiaki Isobe, Ayumu Kurimoto, Kazuki Hashimoto, Tomoaki Nakamura, Kei Nakamura
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Patent number: 7521454Abstract: This invention relates to an adenine derivative, a tautomer thereof, or a pharmaceutically acceptable salt thereof represented by general formula (I): wherein X represents NR3 (wherein R3 represents a hydrogen atom or C1-3 alkyl) or the like; R1 represents substituted or unsubstituted alkyl or the like; R2 represents hydroxyl or the like; and Y represents a substituted or unsubstituted aromatic hetero ring or the like. Also, the present invention relates to pharmaceuticals such as an interferon inducer, antiviral agent, anticancer agent, type 2 helper T cell selective immune response inhibitor, antiallergic agent, and immune response modulator comprising the above derivative as an active ingredient.Type: GrantFiled: October 18, 2006Date of Patent: April 21, 2009Assignee: Dainippon Sumitomo Pharma Co., Ltd.Inventors: Yoshiaki Isobe, Haruhisa Ogita, Masanori Tobe, Haruo Takaku, Tetsuhiro Ogino, Ayumu Kurimoto, Hajime Kawakami
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Publication number: 20080269240Abstract: An adenine compound useful as a medicine represented by the following formula (1): [wherein R1 is halogen atom, optionally substituted alkyl group, optionally substituted aryl group, etc.; X is oxygen atom, sulfur atom, a single bond, etc.; A1 is optionally substituted and optionally saturated 4 to 8 membered heterocyclic group containing 1 to 2 hetero atoms selected from 1 to 3 nitrogen atoms, 0 to 1 oxygen atom, and 0 to 1 sulfur atom; A2 is optionally substituted 6 to 10 cyclic aromatic hydrocarbon group or optionally substituted 5 to 10 membered heterocyclic aromatic group; L1 and L2 are independently, substituted straight or branched alkylene or a single bond, etc.; L3 is optionally substituted straight or branched alkylene, etc.; R2 is hydrogen atom, optionally substituted alkyl group.] or its pharmaceutically acceptable salt.Type: ApplicationFiled: September 21, 2006Publication date: October 30, 2008Applicants: Dainippon Sumitomo Pharma Co., Ltd. a corporation of Japan, AstraZeneca Aktiebolag A Corporation of SwedenInventors: Kazuki Hashimoto, Tomoaki Nakamura, Kei Nakamura, Shingo Tojo, Ayumu Kurimoto, Yoshiaki Isobe, Hiroki Wada, Roger Bonnert
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Publication number: 20070225303Abstract: An 8-oxoadenine compound useful as an immuno-modulator having specific activity against Th1/Th2, specifically a prophylactic and therapeutic agent for a topical application for allergic diseases, viral diseases and cancers, which is represented by the following formula (1): wherein A is a group of a formula represented by the formula (2): wherein R2 is a substituted or unsubstituted alkyl group and so on, R3 is hydrogen atom or an alkyl group, R is a halogen atom and so on, n is 0˜2, X1 is oxygen atom, Z is straight or branched chain alkylene, and R1 is an alkyl group which is optionally substituted by hydroxy group, an alkoxy group, alkoxycarbonyl group and so on, or its pharmaceutically acceptable salt.Type: ApplicationFiled: March 25, 2005Publication date: September 27, 2007Inventors: Haruhisa Ogita, Tomoaki Nakamura, Yoshiaki Isobe, Kazuki Hashimoto, Ayumu Kurimoto
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Publication number: 20070190071Abstract: The present invention provides an 8-oxoadenine compound having immunemodulating activities such as an interferon inducing activity and useful as an antiviral agent and antiallergic agent, which is represented by the following formula (1): [wherein the ring A represents a 6-10 membered aromatic carbocyclic ring and the like, R represents a halogen atom, an alkyl group and the like, n represents an integer of 0-2, Z1 represents alkylene, X2 represents oxygen atom, sulfur atom, SO2, NR5, CO, CONR5, NR5CO and the like, Y1, Y2 and Y3 represent independently a single bond or an alkylene group, X1 represents oxygen atom, sulfur atom, NR4 (R4 is hydrogen atom or an alkyl group) or a single bond, R2 represents a substituted or unsubstituted alkyl group, R1 represents hydrogen atom, hydroxy group, an alkoxy group, an alkoxycarbonyl group or a haloalkyl group] or its pharmaceutically acceptable salt.Type: ApplicationFiled: March 24, 2005Publication date: August 16, 2007Applicants: Dainippon Sumitomo Pharma Co., Ltd., AstraZeneca AktiebolagInventors: Ayumu Kurimoto, Kazuki Hashimoto, Yoshiaki Isobe, Stephen Brough, Ian Millichip, Hiroki Wada, Roger Bonnert, Thomas Mcinally
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Publication number: 20070037832Abstract: This invention relates to an adenine derivative, a tautomer thereof, or a pharmaceutically acceptable salt thereof represented by general formula (I): wherein X represents NR3 (wherein R3 represents a hydrogen atom or C1-3 alkyl) or the like; R1 represents substituted or unsubstituted alkyl or the like; R2 represents hydroxyl or the like; and Y represents a substituted or unsubstituted aromatic hetero ring or the like. Also, the present invention relates to pharmaceuticals such as an interferon inducer, antiviral agent, anticancer agent, type 2 helper T cell selective immune response inhibitor, antiallergic agent, and immune response modulator comprising the above derivative as an active ingredient.Type: ApplicationFiled: October 18, 2006Publication date: February 15, 2007Applicant: Dainippon Sumitomo Pharma Co., Ltd.Inventors: Yoshiaki Isobe, Haruhisa Ogita, Masanori Tobe, Haruo Takaku, Tetsuhiro Ogino, Ayumu Kurimoto, Hajime Kawakami