Patents by Inventor Takashi Yoshizumi
Takashi Yoshizumi 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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Publication number: 20140303178Abstract: The invention relates to compounds of a general formula (I): wherein Ar1 is an optionally-substituted aryl or heteroaromatic group; R1 is an optionally-substituted lower alkyl, lower alkenyl, lower alkynyl or cyclo-lower alkyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R2 is a hydrogen atom, a lower alkyl group, a lower alkenyl group or a lower alkynyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R3 is a hydrogen atom or a lower alkyl group; R4 is a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group or a group of —N(R1k)R1m; T and U are a nitrogen atom or a methine group, etc. The compounds of the invention have excellent Weel kinase-inhibitory effect and are therefore useful in the field of medicines, especially treatment of various cancers.Type: ApplicationFiled: June 24, 2014Publication date: October 9, 2014Inventors: Takeshi Sagara, Sachie Otsuki, Satoshi Sunami, Toshihiro Sakamoto, Kenji Niiyama, Fuyuki Yamamoto, Takashi Yoshizumi, Hidetomo Furuyama, Yasuhiro Goto, Makoto Bamba, Keiji Takahashi, Hiroshi Hirai, Toshihide Nishibata
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Patent number: 8791125Abstract: The invention relates to compounds of a general formula (I): wherein Ar1 is an optionally-substituted aryl or heteroaromatic group; R1 is an optionally-substituted lower alkyl, lower alkenyl, lower alkynyl or cyclo-lower alkyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R2 is a hydrogen atom, a lower alkyl group, a lower alkenyl group or a lower alkynyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R3 is a hydrogen atom or a lower alkyl group; R4 is a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group or a group of —N(R1k)R1m; T and U are a nitrogen atom or a methine group, etc. The compounds of the invention have excellent Weel kinase-inhibitory effect and are therefore useful in the field of medicines, especially treatment of various cancers.Type: GrantFiled: March 22, 2011Date of Patent: July 29, 2014Assignee: MSD K.K.Inventors: Takeshi Sagara, Sachie Otsuki, Satoshi Sunami, Toshihiro Sakamoto, Kenji Niiyama, Fuyuki Yamamoto, Takashi Yoshizumi, Hidetomo Furuyama, Yasuhiro Goto, Makoto Bamba, Keiji Takahashi, Hiroshi Hirai, Toshihide Nishibata
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Patent number: 8507505Abstract: The present invention relates to a compound of General Formula (I) below, among others. In the Formula, Ar1 is an optionally substituted aryl or heteroaryl group; R1 is a hydrogen atom, an optionally substituted C1-C6 alkyl group, or an optionally substituted aryl, aralkyl, or heteroaryl group; R2 is an optionally substituted aryl, aralkyl, or heteroaryl group; and R3 is a hydrogen atom or a C1-C6 alkyl group. A compound of the present invention has an excellent Wee1 kinase inhibiting effect, and is therefore useful in the filed of medicine, particularly in various types of cancer therapy.Type: GrantFiled: December 9, 2009Date of Patent: August 13, 2013Assignee: MSD K.K.Inventors: Makoto Bamba, Hidetomo Furuyama, Toshihiro Sakamoto, Satoshi Sunami, Keiji Takahashi, Fuyuki Yamamoto, Takashi Yoshizumi
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Patent number: 8436004Abstract: The invention relates to a compound of a general formula (I): wherein A1 and A2 each mean a nitrogen atom or an optionally-substituted methine group; Ring B means a 5-membered to 7-membered aliphatic ring, or a spiro or bicyclo ring formed from the aliphatic ring and any other 3-membered to 7-membered aliphatic ring; R1 means a hydrogen atom, or an optionally-substituted C1-C6 alkyl group, or an optionally-substituted aryl, aralkyl or heteroaryl group; R2 means an optionally-substituted aryl, aralkyl or heteroaryl group; and X means a group of ?NH or ?O, etc. Based on its excellent Wee1 kinase-inhibitory effect, the compound of the invention has cell growth-inhibitory effect and has an additive/synergistic effect with any other anticancer agent, and is therefore useful in the field of medicine.Type: GrantFiled: June 12, 2008Date of Patent: May 7, 2013Assignee: MSD K.K.Inventors: Makoto Bamba, Hidetomo Furuyama, Kenji Niiyama, Toshihiro Sakamoto, Satoshi Sunami, Keiji Takahashi, Fuyuki Yamamoto, Takashi Yoshizumi
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Patent number: 8329711Abstract: The invention relates to compounds of general formula (I-0): wherein R1, R2, R3, R4, R5, R6, R7a, R8a, X, and Y are as defined herein. Compounds of the invention have, based on excellent Wee1 kinase-inhibitory effect, a cell growth-inhibitory effect and an additive/synergistic effect with any other anticancer agent, and are therefore useful in the field of medicine.Type: GrantFiled: October 20, 2008Date of Patent: December 11, 2012Assignee: MSD K.K.Inventors: Hidetomo Furuyama, Mikako Kawamura, Toshihiro Sakamoto, Fuyuki Yamamoto, Takashi Yoshizumi
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Publication number: 20110243891Abstract: The present invention relates to a compound of General Formula (I) below, among others. In the Formula, Ar1 is an optionally substituted aryl or heteroaryl group; R1 is a hydrogen atom, an optionally substituted C1-C6 alkyl group, or an optionally substituted aryl, aralkyl, or heteroaryl group; R2 is an optionally substituted aryl, aralkyl, or heteroaryl group; and R3 is a hydrogen atom or a C1-C6 alkyl group. A compound of the present invention has an excellent Weel kinase inhibiting effect, and is therefore useful in the filed of medicine, particularly in various types of cancer therapy.Type: ApplicationFiled: December 9, 2009Publication date: October 6, 2011Inventors: Makoto Bamba, Hidetomo Furuyama, Toshihiro Sakamoto, Satoshi Sunami, Keiji Takahashi, Fuyuki Yamamoto, Takashi Yoshizumi
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Publication number: 20110189130Abstract: The invention relates to compounds of a general formula (I): wherein Ar1 is an optionally-substituted aryl or heteroaromatic group; R1 is an optionally-substituted lower alkyl, lower alkenyl, lower alkynyl or cyclo-lower alkyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R2 is a hydrogen atom, a lower alkyl group, a lower alkenyl group or a lower alkynyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R3 is a hydrogen atom or a lower alkyl group; R4 is a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group or a group of —N(R1k)R1m; T and U are a nitrogen atom or a methine group, etc. The compounds of the invention have excellent Weel kinase-inhibitory effect and are therefore useful in the field of medicines, especially treatment of various cancers.Type: ApplicationFiled: March 22, 2011Publication date: August 4, 2011Inventors: Takeshi Sagara, Sachie Otsuki, Satoshi Sunami, Toshihiro Sakamoto, Kenji Niiyama, Fuyuki Yamamoto, Takashi Yoshizumi, Hidetomo Furuyama, Yasuhiro Goto, Makoto Bamba, Keiji Takahashi, Hiroshi Hirai, Toshihide Nishibata
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Patent number: 7935708Abstract: The invention relates to compounds of a general formula (I): wherein Ar1 is an optionally-substituted aryl or heteroaromatic group; R1 is an optionally-substituted lower alkyl, lower alkenyl, lower alkynyl or cyclo-lower alkyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R2 is a hydrogen atom, a lower alkyl group, a lower alkenyl group or a lower alkynyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R3 is a hydrogen atom or a lower alkyl group; R4 is a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group or a group of —N(R1k)R1m; T and U are a nitrogen atom or a methine group, etc. The compounds of the invention have excellent Weel kinase-inhibitory effect and are therefore useful in the field of medicines, especially treatment of various cancers.Type: GrantFiled: April 25, 2007Date of Patent: May 3, 2011Assignee: MSD K.K.Inventors: Takeshi Sagara, Sachie Otsuki, Satoshi Sunami, Toshihiro Sakamoto, Kenji Niiyama, Fuyuki Yamamoto, Takashi Yoshizumi, Hidetomo Furuyama, Yasuhiro Goto, Makoto Bamba, Keiji Takahashi, Hiroshi Hirai, Toshihide Nishibata
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Patent number: 7855294Abstract: Provided are cycloalkanopyridine derivatives of formula [I]: [wherein the symbols are the same as those stated in the description]. The compounds act as a nociceptin receptor antagonist, and are useful as medicines for diseases associated with a nociceptin receptor, for example, as a reliever against tolerance to a narcotic analgesic; a reliever against dependence on or addiction to a narcotic analgesic; an analgesic enhancer; an antiobesitic or appetite suppressor; a treating or prophylactic agent for cognitive impairment and dementia/amnesia; an agent for treating developmental cognitive abnormality; a remedy for schizophrenia; an agent for treating neurodegenerative diseases; an anti-depressant or treating agent for affective disorder; a treating or prophylactic agent for diabetes insipidus; a treating or prophylactic agent for polyuria; or a remedy for hypotension.Type: GrantFiled: March 4, 2005Date of Patent: December 21, 2010Assignee: Banyu Pharmaceutical Co., Ltd.Inventors: Hirobumi Takahashi, Yuichi Sugimoto, Takashi Yoshizumi, Tetsuya Kato, Masanori Asai, Hiroshi Miyazoe
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Patent number: 7834019Abstract: The invention relates to compounds of a general formula (I): wherein Ar1 is an optionally-substituted aryl or heteroaromatic group; R1 is an optionally-substituted lower alkyl, lower alkenyl, lower alkynyl or cyclo-lower alkyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R2 is a hydrogen atom, a lower alkyl group, a lower alkenyl group or a lower alkynyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R3 is a hydrogen atom or a lower alkyl group; R4 is a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group or a group of —N(R1k)R1m; T and U are a nitrogen atom or a methine group, etc. The compounds of the invention have excellent Weel kinase-inhibitory effect and are therefore useful in the field of medicines, especially treatment of various cancers.Type: GrantFiled: April 25, 2007Date of Patent: November 16, 2010Assignee: Banyu Pharmaceutical Co., Ltd.Inventors: Takeshi Sagara, Sachie Otsuki, Satoshi Sunami, Toshihiro Sakamoto, Kenji Niiyama, Fuyuki Yamamoto, Takashi Yoshizumi, Hidetomo Furuyama, Yasuhiro Goto, Makoto Bamba, Keiji Takahashi, Hiroshi Hirai, Toshihide Nishibata
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Publication number: 20100221211Abstract: The invention relates to a compound of general formula (I-0): wherein R1 means a C1-C6 alkyl group, a C2-C6 alkenyl group, a C2-C6 alkynyl group, or a C3-C6 cycloalkyl group; R2, R3, R4 and R5 mean a hydrogen atom, a halogen atom, a C1-C6 alkyl group, a halo-C1-C6 alkyl group, a C1-C6 alkoxy group, or a halo-C1-C6 alkoxy group; R6 means a hydrogen atom, or a C1-C6 alkyl group; R7a means a hydrogen atom, a halogen atom, a C1-C6 alkyl group, a halo-C1-C6 alkyl group, a C1-C6 alkoxy group, a hydroxy-C1-C6 alkyl group, -Q2-N(R1c)R1d or a nitrogen-containing heterocyclic group; R8a means a hydrogen atom, a halogen atom, a C1-C6 alkyl group, a halo-C1-C6 alkyl group, a C1-C6 alkoxy group or a hydroxy-C1-C6 alkyl group; or R7a and R8a form, as taken together, a C2-C6 alkylene group, or R7a and R8a and the ring atoms to which they bond may form a spiro ring or a bicyclo ring; and X and Y mean a methine group or a nitrogen atom.Type: ApplicationFiled: October 20, 2008Publication date: September 2, 2010Inventors: Hidetomo Furuyama, Mikako Kawamura, Toshihiro Sakamoto, Fuyuki Yamamoto, Takashi Yoshizumi
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Publication number: 20100063024Abstract: The invention relates to compounds of a general formula (I): wherein Ar1 is an optionally-substituted aryl or heteroaromatic group; R1 is an optionally-substituted lower alkyl, lower alkenyl, lower alkynyl or cyclo-lower alkyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R2 is a hydrogen atom, a lower alkyl group, a lower alkenyl group or a lower alkynyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R3 is a hydrogen atom or a lower alkyl group; R4 is a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group or a group of —N(R1k)R1m; T and U are a nitrogen atom or a methine group, etc. The compounds of the invention have excellent Weel kinase-inhibitory effect and are therefore useful in the field of medicines, especially treatment of various cancers.Type: ApplicationFiled: April 25, 2007Publication date: March 11, 2010Inventors: Toshihiro Sakamoto, Takeshi Sagara, Sachie Otsuki, Satoshi Sunami, Kenji Niiyama, Fuyuki Yamamoto, Takashi Yoshizumi, Hidetomo Furuyama, Yasuhiro Goto, Makoto Bamba, Keiji Takahashi, Hiroshi Hirai, Toshihide Nishibata
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Publication number: 20070254892Abstract: The invention relates to compounds of a general formula (I): wherein Ar1 is an optionally-substituted aryl or heteroaromatic group; R1 is an optionally-substituted lower alkyl, lower alkenyl, lower alkynyl or cyclo-lower alkyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R2 is a hydrogen atom, a lower alkyl group, a lower alkenyl group or a lower alkynyl group, or is an aryl, aralkyl or heteroaromatic group optionally having a substituent; R3 is a hydrogen atom or a lower alkyl group; R4 is a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group or a group of —N(R1k)R1m; T and U are a nitrogen atom or a methine group, etc. The compounds of the invention have excellent Weel kinase-inhibitory effect and are therefore useful in the field of medicines, especially treatment of various cancers.Type: ApplicationFiled: April 25, 2007Publication date: November 1, 2007Inventors: Takeshi Sagara, Sachie Otsuki, Satoshi Sunami, Toshihiro Sakamoto, Kenji Niiyama, Fuyuki Yamamoto, Takashi Yoshizumi, Hidetomo Furuyama, Yasuhiro Goto, Makoto Bamba, Keiji Takahashi, Hiroshi Hirai, Toshihide Nishibata
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Publication number: 20070191419Abstract: Provided are cycloalkanopyridine derivatives of formula [I]: [wherein the symbols are the same as those stated in the description]. The compounds act as a nociceptin receptor antagonist, and are useful as medicines for diseases associated with a nociceptin receptor, for example, as a reliever against tolerance to a narcotic analgesic; a reliever against dependence on or addiction to a narcotic analgesic; an analgesic enhancer; an antiobesitic or appetite suppressor; a treating or prophylactic agent for cognitive impairment and dementia/amnesia; an agent for treating developmental cognitive abnormality; a remedy for schizophrenia; an agent for treating neurodegenerative diseases; an anti-depressant or treating agent for affective disorder; a treating or prophylactic agent for diabetes insipidus; a treating or prophylactic agent for polyuria; or a remedy for hypotension.Type: ApplicationFiled: March 4, 2005Publication date: August 16, 2007Inventors: Hirobumi Takahashi, Yuichi Sugimoto, Takashi Yoshizumi, Tetsuya Kato, Masanori Asai, Hiroshi Miyazoe
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Patent number: 7125877Abstract: This invention provides compounds which are represented by a general formula [I] [in which X stands for hydrogen or halogen; B stands for halogen, cyano or optionally fluorine-substituted lower alkyl; D stands for a 3–10 membered aliphatic nitrogen-containing heterocyclic group; R3, R4 and R5 may be same or different, and each stands for hydrogen, lower alkyl optionally having substituent group(s) and the like; and a is 0 or 1]. These compounds exhibit high affinity to nociceptin receptors and whereby inhibit actions of nociceptin, and are useful as an analgesic, antiobestic, agent for ameliorating brain function, treating agents for Alzheimer's disease and dementia, and therapeutic agents for schizophrenia, neurodegenerative diseases, depression, diabetes insipidus, polyuria, hypotension and the like.Type: GrantFiled: May 14, 2003Date of Patent: October 24, 2006Assignee: Banyu Pharmaceutical Co., Ltd.Inventors: Kensuke Kobayashi, Hirobumi Takahashi, Hiroshi Kawamoto, Tetsuya Kato, Satoru Itoh, Takashi Yoshizumi, Osamu Okamoto
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Publication number: 20030236267Abstract: This invention provides compounds which are represented by a general formula [I] 1Type: ApplicationFiled: May 14, 2003Publication date: December 25, 2003Inventors: Kensuke Kobayashi, Hirobumi Takahashi, Hiroshi Kawamoto, Tetsuya Kato, Satoru Itoh, Takashi Yoshizumi, Osamu Okamoto