Patents by Inventor Hidefumi Yoshinaga

Hidefumi Yoshinaga 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).

  • Patent number: 9732065
    Abstract: The present invention provides a cyclic aminomethyl pyrimidine derivative and a pharmaceutically acceptable salt thereof with high selectivity for dopamine D4 receptors, which are useful for treating a disease such as attention deficit hyperactivity disorder. Specifically, a compound of formula (1) or a pharmaceutically acceptable salt thereof is provided, wherein n and m are independently 1 or 2; Ra is C1-6 alkyl group, C3-6 cycloalkyl group, or amino group; Rb is hydrogen atom, C1-6 alkyl group or the like, provided that when Ra is amino group, then Rb is hydrogen atom; Rc1 and Rc2 are independently hydrogen atom, or C1-6 alkyl group; Rd1 and Rd2 are independently hydrogen atom, fluorine atom or the like; ring Q is an optionally-substituted pyridyl group or an optionally-substituted isoquinolyl group; and the bond having a dashed line is a single or double bond.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: August 15, 2017
    Assignee: SUMITOMO DAINIPPON PHARMA CO., LTD.
    Inventors: Hidefumi Yoshinaga, Yoshiharu Uruno, Hidetaka Nagata, Masakazu Hashimoto, Taro Kato
  • Publication number: 20170217902
    Abstract: The present invention relates to a novel serotonin reuptake inhibitor which also exhibits 5-HT2C antagonistic action (antidepressive and anxiolytic effects), in particular, 5-HT2C inverse agonistic action comprising Compound (1): or a pharmaceutically acceptable salt thereof wherein R1, R2 , R3 and R4 are independently hydrogen or C1-6 alkyl etc.; R5 is C4-7 alkyl or —(CR8R9)r-E; R6, R7, R8 and R9 are independently hydrogen, fluorine or C1-6 alkyl; A is C6-10 aryl or heteroaryl etc.; r is 1, 2, 3 or 4; E is C3-8 cycloalkyl or C6-10 aryl etc.; L is oxygen, sulfur or —NR10—; n is 1, 2 or 3; R10 is hydrogen or C1-6 alkyl etc.; and X is hydrogen or halogen etc.
    Type: Application
    Filed: April 19, 2017
    Publication date: August 3, 2017
    Inventors: Izumi SASAKI, Tomohiro TOYODA, Hidefumi YOSHINAGA, Itaru NATSUTANI, Yoko TAKAHASHI
  • Patent number: 9663472
    Abstract: The present invention relates to a novel serotonin reuptake inhibitor which also exhibits 5-HT2C antagonistic action (antidepressive and anxiolytic effects), in particular, 5-HT2C inverse agonistic action comprising Compound (1): or a pharmaceutically acceptable salt thereof wherein R1, R2, R3 and R4 are independently hydrogen or C1-6 alkyl etc.; R5 is C4-7 alkyl or —(CR8R9)r-E; R6, R7, R8 and R9 are independently hydrogen, fluorine or C1-6 alkyl; A is C6-10 aryl or heteroaryl etc.; r is 1, 2, 3 or 4; E is C3-8 cycloalkyl or C6-10 aryl etc.; L is oxygen, sulfur or —NR10—; n is 1, 2 or 3; R10 is hydrogen or C1-6 alkyl etc.; and X is hydrogen or halogen etc.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: May 30, 2017
    Assignee: SUMITOMO DAINIPPON PHARMA CO., LTD.
    Inventors: Izumi Sasaki, Tomohiro Toyoda, Hidefumi Yoshinaga, Itaru Natsutani, Yoko Takahashi
  • Publication number: 20160318933
    Abstract: The present invention provides a cyclic aminomethyl pyrimidine derivative including a pharmaceutically acceptable salt thereof with high selectivity for dopamine D4 receptor, which is useful for treating a disease such as attention deficit hyperactivity disorder. Specifically, the present invention relates no a compound of formula (1) or a pharmaceutically acceptable salt thereof, wherein n and m are independently 1 or 2; W1, W3, and W4 are independently single bond or optionally-substituted C1-4 alkylene group; W2 is optionally-substituted C1-4 alkylene group; R1 and R2 are independently hydrogen atom, etc.; R3 is hydrogen atom, halogen atom, etc.; X1 and X2 are independently single bond, oxygen atom, etc.; ring Q1 is optionally-substituted 5- to 10-membered heteroaryl group, etc.; ring Q2 is optionally-substituted 6-membered heteroaryl group, etc.
    Type: Application
    Filed: October 22, 2014
    Publication date: November 3, 2016
    Applicant: Sumitomo Dainippon Pharma Co., Ltd.
    Inventors: Hidefumi YOSHINAGA, Yoshiharu URUNO, Kiyoto SAWAMURA, Nana GOTO, Yohei IKUMA
  • Publication number: 20160122319
    Abstract: The present invention provides a cyclic aminomethyl pyrimidine derivative and a pharmaceutically acceptable salt thereof with high selectivity for dopamine D4 receptors, which are useful for treating a disease such as attention deficit hyperactivity disorder. Specifically, a compound of formula (1) or a pharmaceutically acceptable salt thereof is provided, wherein n and m are independently 1 or 2; Ra is C1-6 alkyl group, C3-6 cycloalkyl group, or amino group; Rb is hydrogen atom, C1-6 alkyl group or the like, provided that when Ra is amino group, then Rb is hydrogen atom; Rc1 and Rc2 are independently hydrogen atom, or C1-6 alkyl group; Rd1 and Rd2 are independently hydrogen atom, fluorine atom or the like; ring Q is an optionally-substituted pyridyl group or an optionally-substituted isoquinolyl group; and the bond having a dashed line is a single or double bond.
    Type: Application
    Filed: May 29, 2014
    Publication date: May 5, 2016
    Applicant: Sumitomo Dainippon Pharma Co., Ltd.
    Inventors: Hidefumi YOSHINAGA, Yoshiharu URUNO, Hidetaka NAGATA, Masakazu HASHIMOTO, Taro KATO
  • Publication number: 20140315971
    Abstract: The present invention relates to a novel serotonin reuptake inhibitor which also exhibits 5-HT2C antagonistic action (antidepressive and anxiolytic effects), in particular, 5-HT2C inverse agonistic action comprising Compound (1): or a pharmaceutically acceptable salt thereof wherein R1, R2, R3 and R4 are independently hydrogen or C1-6 alkyl etc.; R5 is C4-7 alkyl or —(CR8R9)r-E; R6, R7, R8 and R9 are independently hydrogen, fluorine or C1-6 alkyl; A is C6-10 aryl or heteroaryl etc.; r is 1, 2, 3 or 4; E is C3-8 cycloalkyl or C6-10 aryl etc.; L is oxygen, sulfur or —NR10—; n is 1, 2 or 3; R10 is hydrogen or C1-6 alkyl etc.; and X is hydrogen or halogen etc.
    Type: Application
    Filed: July 7, 2014
    Publication date: October 23, 2014
    Inventors: Izumi SASAKI, Tomohiro TOYODA, Hidefumi YOSHINAGA, Itaru NATSUTANI, Yoko TAKAHASHI
  • Patent number: 8809383
    Abstract: The present invention relates to a novel serotonin reuptake inhibitor which also exhibits 5-HT2C antagonistic action (antidepressive and anxiolytic effects), in particular, 5-HT2C inverse agonistic action comprising Compound (1): or a pharmaceutically acceptable salt thereof wherein R1, R2, R3 and R4 are independently hydrogen or C1-6 alkyl etc.; R5 is C4-7 alkyl or —(CR8R9)r-E; R6, R7, R8 and R9 are independently hydrogen, fluorine or C1-6 alkyl; A is C6-10 aryl or heteroaryl etc.; r is 1, 2, 3 or 4; E is C3-8 cycloalkyl or C6-10 aryl etc.; L is oxygen, sulfur or —NR10—; n is 1, 2 or 3; R10 is hydrogen or C1-6 alkyl etc.; and X is hydrogen or halogen etc.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: August 19, 2014
    Assignee: Dainippon Sumitomo Pharma Co., Ltd.
    Inventors: Izumi Sasaki, Tomohiro Toyoda, Hidefumi Yoshinaga, Itaru Natsutani, Yoko Takahashi
  • Patent number: 8778970
    Abstract: Provided is a new serotonin-reuptake inhibitor that exhibits affinity for serotonin-1A receptors. Said serotonin-reuptake inhibitor is a compound represented by formula (1) or a pharmacologically acceptable salt thereof. In the formula, R1 represents a hydrogen atom, a 2-hydroxyethyl group, or a 2-methoxyethyl group. R2 represents one of the following bonded to a methylene group which is bonded to a piperidine ring: a chlorine atom bonded in a p-position; a bromine atom bonded in a p-position; a methyl group bonded in a p-position; a chlorine atom bonded in an m-position; or a bromine atom bonded in an m-position. Either Y1 represents a hydrogen atom and Y2 represents a hydrogen atom or a hydroxyl group, or Y1 and Y2 together represent an oxo group. Z represents a group represented by one of the following formulas: formula (3-1-1), formula (3-1-2), formula (3-2-1), formula (3-2-2), formula (3-3-1), formula (3-3-2), formula (3-4-1), or formula (3-4-2).
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: July 15, 2014
    Assignee: Dainippon Sumitomo Pharma Co., Ltd
    Inventors: Tomohiro Toyoda, Tomoaki Nishida, Hidefumi Yoshinaga
  • Publication number: 20140031406
    Abstract: The present invention relates to a novel serotonin reuptake inhibitor which also exhibits 5-HT2C antagonistic action (antidepressive and anxiolytic effects), in particular, 5-HT2C inverse agonistic action comprising Compound (1): or a pharmaceutically acceptable salt thereof wherein R1, R2, R3 and R4 are independently hydrogen or C1-6 alkyl etc.; R5 is C4-7 alkyl or —(CR8R9)r-E; R6, R7, R8 and R9 are independently hydrogen, fluorine or C1-6 alkyl; A is C6-10 aryl or heteroaryl etc.; r is 1, 2, 3 or 4; E is C3-8 cycloalkyl or C6-10 aryl etc.; L is oxygen, sulfur or —NR10—; n is 1, 2 or 3; R10 is hydrogen or C1-6 alkyl etc.; and X is hydrogen or halogen etc.
    Type: Application
    Filed: September 30, 2013
    Publication date: January 30, 2014
    Applicant: Dainippon Sumitomo Pharma Co., Ltd.
    Inventors: Izumi SASAKI, Tomohiro TOYODA, Hidefumi YOSHINAGA, Itaru NATSUTANI, Yoko TAKAHASHI
  • Publication number: 20130303786
    Abstract: Disclosed is a benzylpiperizine compound represented by formula (1) or a pharmaceutically acceptable salt thereof, which is useful as a medicinal agent such as an antidepressant agent. (In the formula (1), R1 represents a hydrogen atom or a methyl group; R2 is a group bound in a p- or m-position relative to a methylene group and represents a chlorine atom bound in a p-position, a bromine atom bound in a p-position, a methyl group bound in a p-position, a chlorine atom bound in a m-position or a bromine atom bound to in a m-position; X represents a methylene or an oxygen atom; and n represents an integer of 1 to 3.
    Type: Application
    Filed: July 11, 2013
    Publication date: November 14, 2013
    Inventors: Tomohiro TOYODA, Hidefumi YOSHINAGA
  • Patent number: 8569353
    Abstract: The present invention relates to a novel serotonin reuptake inhibitor which also exhibits 5-HT2C antagonistic action (antidepressive and anxiolytic effects), in particular, 5-HT2C inverse agonistic action comprising Compound (1): or a pharmaceutically acceptable salt thereof wherein R1, R2, R3 and R4 are independently hydrogen or C1-6 alkyl etc.; R5 is C4-7 alkyl or —(CR8R9)r-E; R6, R7, R8 and R9 are independently hydrogen, fluorine or C1-6 alkyl; A is C6-10 aryl or heteroaryl etc.; r is 1, 2, 3 or 4; E is C3-8 cycloalkyl or C6-10 aryl etc.; L is oxygen, sulfur or —NR10—; n is 1, 2 or 3; R10 is hydrogen or C1-6 alkyl etc.; and X is hydrogen or halogen etc.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: October 29, 2013
    Assignee: Dainippon Sumitomo Pharma Co., Ltd.
    Inventors: Izumi Sasaki, Tomohiro Toyoda, Hidefumi Yoshinaga, Itaru Natsutani, Yoko Takahashi
  • Publication number: 20130116296
    Abstract: The present invention relates to a novel serotonin reuptake inhibitor which also exhibits 5-HT2C antagonistic action (antidepressive and anxiolytic effects), in particular, 5-HT2C inverse agonistic action comprising Compound (1): or a pharmaceutically acceptable salt thereof wherein R1, R2, R3 and R4 are independently hydrogen or C1-6 alkyl etc.; R5 is C4-7 alkyl or —(CR8R9)r-E; R6, R7, R8 and R9 are independently hydrogen, fluorine or C1-6 alkyl; A is C6-10 aryl or heteroaryl etc.; r is 1, 2, 3 or 4; E is C3-8 cycloalkyl or C6-10 aryl etc.; L is oxygen, sulfur or —NR10—; n is 1, 2 or 3; R10 is hydrogen or C1-6 alkyl etc.; and X is hydrogen or halogen etc.
    Type: Application
    Filed: July 14, 2011
    Publication date: May 9, 2013
    Inventors: Izumi Sasaki, Tomohiro Toyoda, Hidefumi Yoshinaga, Itaru Natsutani, Yoko Takahashi
  • Publication number: 20120259122
    Abstract: Disclosed is a benzylpiperizine compound represented by formula (1) or a pharmaceutically acceptable salt thereof, which is useful as a medicinal agent such as an antidepressant agent. (In the formula (1), R1 represents a hydrogen atom or a methyl group; R2 is a group bound in a p- or m-position relative to a methylene group and represents a chlorine atom bound in a p-position, a bromine atom bound in a p-position, a methyl group bound in a p-position, a chlorine atom bound in a m-position or a bromine atom bound to in a m-position; X represents a methylene or an oxygen atom; and n represents an integer of 1 to 3.
    Type: Application
    Filed: June 20, 2012
    Publication date: October 11, 2012
    Applicant: DAINIPPON SUMITOMO PHARMA CO., LTD.
    Inventors: Tomohiro TOYODA, Hidefumi YOSHINAGA
  • Patent number: 8232405
    Abstract: Disclosed is a benzylpiperizine compound represented by formula (1) or a pharmaceutically acceptable salt thereof, which is useful as a medicinal agent such as an antidepressant agent. (In the formula (1), R1 represents a hydrogen atom or a methyl group; R2 is a group bound in a p- or m-position relative to a methylene group and represents a chlorine atom bound in a p-position, a bromine atom bound in a p-position, a methyl group bound in a p-position, a chlorine atom bound in a m-position or a bromine atom bound to in a m-position; X represents a methylene or an oxygen atom; and n represents an integer of 1 to 3.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: July 31, 2012
    Assignee: Dainippon Sumitomo Pharma Co., Ltd.
    Inventors: Tomohiro Toyoda, Hidefumi Yoshinaga
  • Publication number: 20120130077
    Abstract: Provided is a new serotonin-reuptake inhibitor that exhibits affinity for serotonin-1A receptors. Said serotonin-reuptake inhibitor is a compound represented by formula (1) or a pharmacologically acceptable salt thereof. In the formula, R1 represents a hydrogen atom, a 2-hydroxyethyl group, or a 2-methoxyethyl group. R2 represents one of the following bonded to a methylene group which is bonded to a piperidine ring: a chlorine atom bonded in a p-position; a bromine atom bonded in a p-position; a methyl group bonded in a p-position; a chlorine atom bonded in an m-position; or a bromine atom bonded in an m-position. Either Y1 represents a hydrogen atom and Y2 represents a hydrogen atom or a hydroxyl group, or Y1 and Y2 together represent an oxo group. Z represents a group represented by one of the following formulas: formula (3-1-1), formula (3-1-2), formula (3-2-1), formula (3-2-2), formula (3-3-1), formula (3-3-2), formula (3-4-1), or formula (3-4-2).
    Type: Application
    Filed: August 4, 2010
    Publication date: May 24, 2012
    Applicant: DAINIPPON SUMITOMO PHARMA CO., LTD.
    Inventors: Tomohiro Toyoda, Tomoaki Nishida, Hidefumi Yoshinaga
  • Patent number: 8063223
    Abstract: Disclosed is a benzylpiperizine compound represented by formula (1) or a pharmaceutically acceptable salt thereof, which is useful as a medicinal agent such as an antidepressant agent. (In the formula (1), R1 represents a hydrogen atom or a methyl group; R2 is a group bound in a p- or m-position relative to a methylene group and represents a chlorine atom bound in a p-position, a bromine atom bound in a p-position, a methyl group bound in a p-position, a chlorine atom bound in a m-position or a bromine atom bound to in a m-position; X represents a methylene or an oxygen atom; and n represents an integer of 1 to 3.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: November 22, 2011
    Assignee: Dainippon Sumitomo Pharma Co., Ltd.
    Inventors: Tomohiro Toyoda, Hidefumi Yoshinaga
  • Publication number: 20110118312
    Abstract: Disclosed is a benzylpiperizine compound represented by formula (1) or a pharmaceutically acceptable salt thereof, which is useful as a medicinal agent such as an antidepressant agent. (In the formula (1), R1 represents a hydrogen atom or a methyl group; R2 is a group bound in a p- or m-position relative to a methylene group and represents a chlorine atom bound in a p-position, a bromine atom bound in a p-position, a methyl group bound in a p-position, a chlorine atom bound in a m-position or a bromine atom bound to in a m-position; X represents a methylene or an oxygen atom; and n represents an integer of 1 to 3.
    Type: Application
    Filed: January 20, 2011
    Publication date: May 19, 2011
    Applicant: DAINIPPON SUMITOMO PHARMA CO., LTD.
    Inventors: Tomohiro TOYODA, Hidefumi YOSHINAGA
  • Publication number: 20100113792
    Abstract: Disclosed is a benzylpiperizine compound represented by formula (1) or a pharmaceutically acceptable salt thereof, which is useful as a medicinal agent such as an antidepressant agent. (In the formula (1), R1 represents a hydrogen atom or a methyl group; R2 is a group bound in a p- or m-position relative to a methylene group and represents a chlorine atom bound in a p-position, a bromine atom bound in a p-position, a methyl group bound in a p-position, a chlorine atom bound in a m-position or a bromine atom bound to in a m-position; X represents a methylene or an oxygen atom; and n represents an integer of 1 to 3.
    Type: Application
    Filed: February 4, 2009
    Publication date: May 6, 2010
    Applicant: Dainippon Sumitomo Pharma Co., Ltd.
    Inventors: Tomohiro Toyoda, Hidefumi Yoshinaga