Patents by Inventor Tsuyoshi Nagase

Tsuyoshi Nagase 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).

  • Publication number: 20100234392
    Abstract: [Problems] To provide compounds useful as preventives or remedies for circulatory diseases, nervous diseases, metabolic diseases, reproductive system diseases, and digestive diseases. [Means for Solving Problems] Compounds represented by the general formula (I) or pharmaceutically acceptable salts thereof: wherein R1 is C1-6 alkyl, C3-8 cycloalkyl, or the like; R2 is phenyl, heteroaryl, or the like; Q is N or CH; and M1, M2, M3 and M4 are each independently hydrogen or C1-6 alkyl, or alternatively M1 together with M2 or M3 forms —CH2-CH2- or the like, or M4 together with M2 or M3 forms —CH2-CH2- or the like, with the proviso that M1, M2, M3, and M4 are such that one —CH2- or —CH2-CH2- group is formed thereamong.
    Type: Application
    Filed: September 12, 2008
    Publication date: September 16, 2010
    Inventors: Tsuyoshi Nagase, Takahide Sasaki, Toshiyuki Takahashi
  • Patent number: 7790731
    Abstract: The present invention is directed to a form I crystal of 2-methyl 3-{4-[3-(1-pyrrolidinyl)propoxy]phenyl}-5-trifluoromethyl-4(3H)-quinazolinone that is useful for example in the treatment of sleep disorders or various sleep disorder-associated diseases.
    Type: Grant
    Filed: February 13, 2006
    Date of Patent: September 7, 2010
    Assignee: Banyu Pharmaceutical Co. Ltd.
    Inventors: Akio Kanatani, Nagaaki Sato, Tsuyoshi Nagase, Shigeru Tokita
  • Publication number: 20100210636
    Abstract: [PROBLEMS] To provide a compound useful as an agent for the treatment of circulatory diseases, nervous system diseases, metabolic diseases, reproductive system diseases, and digestive tract diseases. [MEANS FOR SOLVING PROBLEMS] The compound, which is for use as an active ingredient, is represented by the formula (I): [wherein R1 represents optionally halogenated C1-6 alkyl, etc.; R2 represents, e.g., a group represented by the formula (II-1) or (II-4) (wherein W represents C1-6 alkylene, etc. and R represents C1-6 alkyl, etc.); R3 represents hydrogen, C1-6 alkyl, etc.; X represents —O—, —NH—, etc.; and Y1, Y2, Y3, and Y4 each independently represents —CH—, —N—, etc.].
    Type: Application
    Filed: October 2, 2008
    Publication date: August 19, 2010
    Inventors: Shiho Ishikawa, Takashi Mizutani, Tsuyoshi Nagase, Nagaaki Sato, Hidekazu Takahashi
  • Publication number: 20100056597
    Abstract: A compound represented by the general formula (I-a): [wherein R1a and R2a each means hydrogen, lower cycloalkyl, lower alkyl, etc.; R3a means hydrogen, lower cycloalkyl, lower alkyl, etc.; R4a and R5a each means lower alkyl, lower cycloalkyl, etc. or R4a and R5a are bonded to each other to form lower cycloalkylidene; and R6a means lower alkyl, lower haloalkyl, etc.]. This compound functions as an LCE inhibitor and is useful as a therapeutic agent for various circulatory diseases, nervous diseases, metabolic diseases, reproductive diseases, digestive tract diseases, neoplasm, infectious diseases, etc.
    Type: Application
    Filed: March 27, 2008
    Publication date: March 4, 2010
    Inventors: Toshiyuki Takahashi, Tsuyoshi Nagase, Nagaaki Sato
  • Publication number: 20090306375
    Abstract: The present invention provides a process for producing a 4(3H)-quinazolinone derivative, which is useful as a medicinal substance, with better efficiency in an industrial scale. The process comprises the steps of reacting 4-hydroxy-N-tert-butoxycarbonylpiperidine with 4-fluoro-1-nitrobenzene in the presence of sodium hydride, reacting the resulting product with cyclobutanone, reducing the resulting product to give 4-(1-cyclobutyl-4-piperidinyl)oxyaniline, and reacting this compound with 2-methyl-5-trifluoromethyl-4H-3,1-benzoxazin-4-one to give 3-{4-[(1-cyclobutyl-4-piperidinyl)oxy]phenyl}-2-methyl-5-trifluoromethyl-4(3H)-quinazolinone.
    Type: Application
    Filed: June 7, 2006
    Publication date: December 10, 2009
    Inventors: Satoshi Kii, Tsuyoshi Nagase, Kimihiko Sato, Nagaaki Sato, Naotaka Sawada, Takayuki Tsuritani
  • Publication number: 20090209562
    Abstract: The present invention provides a compound represented by formula (I) below, or a pharmaceutically acceptable salt thereof, which, having histamine H3 receptor antagonist or inverse agonist activity, is useful in the prophylaxis or therapy of metabolic diseases, circulatory diseases, or nervous system diseases. [where, for example, Ar is a divalent group formed by eliminating two hydrogen atoms from benzene, X1 is a nitrogen atom, sulfur atom or oxygen atom, R1 is a 5- to 6-membered heteroaryl group, Ring A is a 5- to 6-membered heteroaryl ring, R2 and R3 are amino groups or alkylamino groups, and X2 is represented by formula (II): (where R4 and R5 are lower alkyl groups, and n is an integer from 2 to 4).
    Type: Application
    Filed: February 11, 2009
    Publication date: August 20, 2009
    Applicant: Banyu Pharmaceutical Co., Ltd.
    Inventors: Tsuyoshi Nagase, Nagaaki Sato, Akio Kanatani, Shigeru Tokita
  • Publication number: 20090137576
    Abstract: Disclosed is a substance having an antagonistic effect on the binding of histamine to a histamine H3 receptor or an inhibitory effect on the activity which a histamine H3 receptor constantly exhibits. A compound represented by the formula (I) or a pharmaceutically acceptable salt thereof; (I) wherein R1 represents a phenyl group which may be substituted or the like and R2 represents a cyano group which may be substituted or the like, or R1 and R2 together form an aliphatic heterocylic ring which may be substituted; R3 represents a group represented by the formula (II-1) below; and all of X1 to X4 represent a carbon atom or the like: (II-1) where R4 and R5 represent a lower alkyl group or the like; and m1 represents an integer of 2 to 4.
    Type: Application
    Filed: May 29, 2006
    Publication date: May 28, 2009
    Inventors: Shiho Ishikawa, Tsuyoshi Nagase, Nagaaki Sato, Hidekazu Takahashi, Shigeru Tokita, Toshihiro Wada
  • Patent number: 7521455
    Abstract: The present invention provides a compound represented by formula (I) below, or a pharmaceutically acceptable salt thereof, which, having histamine H3 receptor antagonist or inverse agonist activity, is useful in the prophylaxis or therapy of metabolic diseases, circulatory diseases, or nervous system diseases. [where, for example, Ar is a divalent group formed by eliminating two hydrogen atoms from benzene, X1 is a nitrogen atom, sulfur atom or oxygen atom, R1 is a 5- to 6-membered heteroaryl group, Ring A is a 5- to 6-membered heteroaryl ring, R2 and R3 are amino groups or alkylamino groups, and X2 is represented by formula (II): (where R4 and R5 are lower alkyl groups, and n is an integer from 2 to 4).
    Type: Grant
    Filed: February 14, 2005
    Date of Patent: April 21, 2009
    Assignee: Banyu Pharmaceutical Co. Ltd.
    Inventors: Tsuyoshi Nagase, Nagaaki Sato, Akio Kanatani, Shigeru Tokita
  • Publication number: 20080275069
    Abstract: This invention provides a compound or its pharmaceutically-acceptable salt of formula (I) wherein R1 represents a lower alkyl group et al; R2 and R3 are same and different and represents hydrogen atm et al; R4 represents the substituent of the formula (I) et al; X1 represents NH, O or S; Y represents N or C; Ar is a divalent substituent derived from aryl et al, by removing two hydrogen atoms therefrom; the ring A represents a 5- or 6-membered heteroaryl group; this compounds has a histamine-H3 receptor antagonistic effect or a histamine-H3 receptor inverse-agonistic effect and is useful for preventive or remedy of metabolic system diseases, circulatory system diseases or nervous system diseases.
    Type: Application
    Filed: May 30, 2005
    Publication date: November 6, 2008
    Inventors: Takashi Mizutani, Tsuyoshi Nagase, Nagaaki Sato, Akio Kanatani, Shigeru Tokita
  • Publication number: 20080139589
    Abstract: A substance that has a potency antagonistic to coupling of histamine with histamine H3 receptor or a potency of inhibiting the constant activity of histamine H3 receptor. There is provided a form I crystal of 2-methyl 3-{4-[3-(1-pyrrolidinyl)propoxy]phenyl}-5-trifluoromethyl-4(3H)-quinazolinone that in the powder X- ray diffractometry, has peaks at 6.4°, 9.7°, 10.2°, 12.9°, 14.2°, 14.7°, 16.0°, 16.3°, 16.8°, 17.6°, 19.5°, 20.3°, 20.6°, 21.2°, 21.8°, 22.1°, 22.4°, 22.6°, 24.0°, 24.3°, 24.9°, 25.7°, 25.9°, 26.5°, 26.7°, 27.4°, 29.1°, 29.4°, 32.3° and 39.0° diffraction angles(2?±0.2°).
    Type: Application
    Filed: February 13, 2006
    Publication date: June 12, 2008
    Inventors: Akio Kanatani, Nagaaki Sato, Tsuyoshi Nagase, Shigeru Tokita
  • Patent number: 7138525
    Abstract: A compound of the formula (I): (wherein Ar1 and Ar2 are independently aryl or heteroaryl, any of which is optionally substituted by a substituent selected from the group consisting of cyano, halogen, nitro, lower alkyl, halo-lower alkyl, hydroxy-lower alkyl, cyclo-lower alkyl, cyclo(lower alkyl)-lower alkyl, lower alkenyl, lower alkylamino, di-lower alkylamino, lower alkanoylamino, lower alkylsulfonylamino, arylsulfonylamino, hydroxy, lower alkoxy, halo-lower alkoxy, aryloxy, heteroaryloxy, lower alkylthio, carboxyl, formyl, lower alkanoyl, lower alkoxycarbonyl, carbamoyl, lower alkylcarbamoyl, di-lower alkylcarbamoyl, lower alkylsulfonyl, arylsulfonyl, aryl and heteroaryl; R1 and R2 are independently lower alkyl, cyclo-lower alkyl, cyclo(lower alkyl)-lower alkyl or lower alkoxy, any of which is optionally substituted by a substituent selected from the group consisting of halogen, lower alkylamino, di-lower alkylamino, lower alkanoylamino, hydroxy, lower alkoxy, formyl, lower alkoxycarbonyl, lower alky
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: November 21, 2006
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Nagaaki Sato, Makoto Ando, Shiho Ishikawa, Tsuyoshi Nagase, Keita Nagai, Akio Kanatani
  • Patent number: 7119107
    Abstract: A compound of the formula (I): wherein R1 is hydrogen, halogen, cyano, lower alkyl, halo-lower alkyl, hydroxy, lower alkoxy or aralkyloxy; R2 and R3 are each independently hydrogen, halogen or halo-lower alkyl; and R4 and R5 are each independently hydrogen or halogen, is useful as a pharmaceutical composition for the treatment of various diseases related to NPY, for example, cardiovascular disorders such as angina, acute or congestive heart failure, myocardial infarction, hypertension, nephropathy, electrolyte abnormality, vasospasm, etc., nervous system disorders such as bulimia, depression, anxiety, seizure, epilepsy, dementia, pain, alcoholism, drug withdrawal, circadian rhythm disorders, schizophrenia, memory impairment, sleep disorders, cognitive impairment, etc., metabolic diseases such as obesity, diabetes, hormone abnormality, gout, fatty liver, etc., genital or reproductive disorders such as infertility, preterm labor, sexual dysfunction, etc.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: October 10, 2006
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Nagaaki Sato, Tsuyoshi Nagase, Keita Nagai, Makoto Ando, Akio Kanatani
  • Publication number: 20050182045
    Abstract: The present invention provides a compound represented by formula (I) below, or a pharmaceutically acceptable salt thereof, which, having histamine H3 receptor antagonist or inverse agonist activity, is useful in the prophylaxis or therapy of metabolic diseases, circulatory diseases, or nervous system diseases. [where, for example, Ar is a divalent group formed by eliminating two hydrogen atoms from benzene, X1 is a nitrogen atom, sulfur atom or oxygen atom, R1 is a 5- to 6-membered heteroaryl group, Ring A is a 5- to 6-membered heteroaryl ring, R2 and R3 are amino groups or alkylamino groups, and X2 is represented by formula (II): (where R4 and R5 are lower alkyl groups, and n is an integer from 2 to 4).
    Type: Application
    Filed: February 14, 2005
    Publication date: August 18, 2005
    Applicant: Banyu Pharmaceutical Co., Ltd.
    Inventors: Tsuyoshi Nagase, Nagaaki Sato, Akio Kanatani, Shigeru Tokita
  • Publication number: 20050154025
    Abstract: A compound of the formula (I): wherein R1 is hydrogen, halogen, cyano, lower alkyl, halo-lower alkyl, hydroxy, lower alkoxy or aralkyloxy; R2 and R3 are each independently hydrogen, halogen or halo-lower alkyl; and R4 and R are each independently hydrogen or halogen, is useful as a pharmaceutical composition for the treatment of various diseases related to NPY, for example, cardiovascular disorders such as angina, acute or congestive heart failure, myocardial infarction, hypertension, nephropathy, electrolyte abnormality, vasospasm, etc., nervous system disorders such as bulimia, depression, anxiety, seizure, epilepsy, dementia, pain, alcoholism, drug withdrawal, circadian rhythm disorders, schizophrenia, memory impairment, sleep disorders, cognitive impairment, etc., metabolic diseases such as obesity, diabetes, hormone abnormality, gout, fatty liver, etc., genital or reproductive disorders such as infertility, preterm labor, sexual dysfunction, etc.
    Type: Application
    Filed: March 14, 2003
    Publication date: July 14, 2005
    Inventors: Nagaaki Sato, Tsuyoshi Nagase, Keita Nagai, Makoto Ando, Akio Kanatani
  • Patent number: 6869966
    Abstract: A compound of the formula (I): (wherein Ar1 and Ar2 are independently aryl or heteroaryl, any of which is optionally substituted by a substituent selected from the group consisting of cyano, halogen, nitro, lower alkyl, halo-lower alkyl, hydroxy-lower alkyl, cyclo-lower alkyl, cyclo(lower alkyl)-lower alkyl, lower alkenyl, lower alkylamino, di-lower alkylamino, lower alkanoylamino, lower alkylsulfonylamino, arylsulfonylamino, hydroxy, lower alkoxy, halo-lower alkoxy, aryloxy, heteroaryloxy, lower alkylthio, carboxyl, formyl, lower alkanoyl, lower alkoxycarbonyl, carbamoyl, lower alkylcarbamoyl, di-lower alkylcarbamoyl, lower alkylsulfonyl, arylsulfonyl, aryl and heteroaryl; R1 and R2 are independently lower alkyl, cyclo-lower alkyl, cyclo(lower alkyl)-lower alkyl or lower alkoxy, any of which is optionally substituted by a substituent selected from the group consisting of halogen, lower alkylamino, di-lower alkylamino, lower alkanoylamino, hydroxy, lower alkoxy, formyl, lower alkoxycarbonyl, lower alkylc
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: March 22, 2005
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Nagaaki Sato, Makoto Ando, Shiho Ishikawa, Tsuyoshi Nagase, Keita Nagai, Akio Kanatani
  • Publication number: 20050009879
    Abstract: A compound of the formula (I): (wherein Ar1 and Ar2 are independently aryl or heteroaryl, any of which is optionally substituted by a substituent selected from the group consisting of cyano, halogen, nitro, lower alkyl, halo-lower alkyl, hydroxy-lower alkyl, cyclo-lower alkyl, cyclo(lower alkyl)-lower alkyl, lower alkenyl, lower alkylamino, di-lower alkylamino, lower alkanoylamino, lower alkylsulfonylamino, arylsulfonylamino, hydroxy, lower alkoxy, halo-lower alkoxy, aryloxy, heteroaryloxy, lower alkylthio, carboxyl, formyl, lower alkanoyl, lower alkoxycarbonyl, carbamoyl, lower alkylcarbamoyl, di-lower alkylcarbamoyl, lower alkylsulfonyl, arylsulfonyl, aryl and heteroaryl; R1 and R2 are independently lower alkyl, cyclo-lower alkyl, cyclo(lower alkyl)-lower alkyl or lower alkoxy, any of which is optionally substituted by a substituent selected from the group consisting of halogen, lower alkylamino, di-lower alkylamino, lower alkanoylamino, hydroxy, lower alkoxy, formyl, lower alkoxycarbonyl, lower alk
    Type: Application
    Filed: July 27, 2004
    Publication date: January 13, 2005
    Inventors: Nagaaki Sato, Makoto Ando, Shiho Ishikawa, Tsuyoshi Nagase, Keita Nagai, Akio Kanatani
  • Publication number: 20040072874
    Abstract: A compound of the formula (I): 1
    Type: Application
    Filed: August 15, 2003
    Publication date: April 15, 2004
    Inventors: Nagaaki Sato, Makoto Ando, Shiho Ishikawa, Tsuyoshi Nagase, Keita Nagai, Akio Kanatani