Patents by Inventor Shiro Tsubokura

Shiro Tsubokura 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: 20140155612
    Abstract: Disclosed is a compound containing a pyridine ring that can be synthesized in an industrially advantageous manner, and is useful as an intermediate for producing tetrazolyloxime derivatives that exhibit fungicidal activity (wherein R0 represents a C1-6 alkoxy group, C1-6 alkoxy-C1-6 alkoxy group or the like, R1 represents a C1-2 alkoxycarbonyl group, acetyl group or the like, Z represents a halogen atom, cyano group or the like, X represents a halogen atom, and n represents an integer of 0 to 3), and industrially advantageous production methods for producing 2-substituted amino-6-halomethylpyridine derivatives and tetrazolyloxime derivatives.
    Type: Application
    Filed: February 5, 2014
    Publication date: June 5, 2014
    Applicant: Nippon Soda Co., Ltd.
    Inventors: Hidekazu Miyazaki, Satoru Yanaka, Shiro Tsubokura, Tadashi Sugiura, Kaoru Noda, Kengo Suzuki
  • Publication number: 20140155611
    Abstract: Disclosed is a compound containing a pyridine ring that can be synthesized in an industrially advantageous manner, and is useful as an intermediate for producing tetrazolyloxime derivatives that exhibit fungicidal activity (wherein R0 represents a C1-6 alkoxy group, C1-6 alkoxy-C1-6 alkoxy group or the like, R1 represents a C1-2 alkoxycarbonyl group, acetyl group or the like, Z represents a halogen atom, cyano group or the like, X represents a halogen atom, and n represents an integer of 0 to 3), and industrially advantageous production methods for producing 2-substituted amino-6-halomethylpyridine derivatives and tetrazolyloxime derivatives.
    Type: Application
    Filed: February 5, 2014
    Publication date: June 5, 2014
    Applicant: Nippon Soda Co., Ltd.
    Inventors: Hidekazu Miyazaki, Satoru Yanaka, Shiro Tsubokura, Tadashi Sugiura, Kaoru Noda, Kengo Suzuki
  • Publication number: 20140155613
    Abstract: Disclosed is a compound containing a pyridine ring that can be synthesized in an industrially advantageous manner, and is useful as an intermediate for producing tetrazolyloxime derivatives that exhibit fungicidal activity (wherein R0 represents a C1-6 alkoxy group, C1-6 alkoxy-C1-6 alkoxy group or the like, R1 represents a C1-2 alkoxycarbonyl group, acetyl group or the like, Z represents a halogen atom, cyano group or the like, X represents a halogen atom, and n represents an integer of 0 to 3), and industrially advantageous production methods for producing 2-substituted amino-6-halomethylpyridine derivatives and tetrazolyloxime derivatives.
    Type: Application
    Filed: February 5, 2014
    Publication date: June 5, 2014
    Applicant: Nippon Soda Co., Ltd.
    Inventors: Hidekazu Miyazaki, Satoru Yanaka, Shiro Tsubokura, Tadashi Sugiura, Kaoru Noda, Kengo Suzuki
  • Publication number: 20140155615
    Abstract: Disclosed is a compound containing a pyridine ring that can be synthesized in an industrially advantageous manner, and is useful as an intermediate for producing tetrazolyloxime derivatives that exhibit fungicidal activity (wherein R0 represents a C1-6 alkoxy group, C1-6 alkoxy-C1-6 alkoxy group or the like, R1 represents a C1-2 alkoxycarbonyl group, acetyl group or the like, Z represents a halogen atom, cyano group or the like, X represents a halogen atom, and n represents an integer of 0 to 3), and industrially advantageous production methods for producing 2-substituted amino-6-halomethylpyridine derivatives and tetrazolyloxime derivatives.
    Type: Application
    Filed: February 5, 2014
    Publication date: June 5, 2014
    Applicant: Nippon Soda Co., Ltd.
    Inventors: Hidekazu Miyazaki, Satoru Yanaka, Shiro Tsubokura, Tadashi Sugiura, Kaoru Noda, Kengo Suzuki
  • Publication number: 20140155616
    Abstract: There are provided a nitrogen-containing heterocyclic compound such as a substituted amino-pyridine-N-oxide compound represented by formula (1), which is useful as a synthetic intermediate for an agrochemical and the like; and a method for producing the nitrogen-containing heterocyclic compound. (In formula (1), R1 and R2 each represents a hydrogen atom or an unsubstituted or substituted alkyl group; R3 represents a hydrogen atom, an unsubstituted or substituted alkylcarbonyl group or the like; R4 represents an unsubstituted or substituted alkylcarbonyl group, an unsubstituted or substituted arylcarbonyl group or the like; A represents a hydroxyl group, a thiol group or the like; m represents any one of integers of 1 to 4; k represents any one of integers of 0 to 3; and k+m?4.
    Type: Application
    Filed: February 7, 2014
    Publication date: June 5, 2014
    Applicant: Nippon Soda Co., Ltd.
    Inventors: Koichi KUTOSE, Hiroki INOUE, Shiro TSUBOKURA
  • Patent number: 8703959
    Abstract: There are provided a nitrogen-containing heterocyclic compound such as a substituted amino-pyridine-N-oxide compound represented by formula (1), which is useful as a synthetic intermediate for an agrochemical and the like; and a method for producing the nitrogen-containing heterocyclic compound. (In formula (1), R1 and R2 each represents a hydrogen atom or an unsubstituted or substituted alkyl group; R3 represents a hydrogen atom, an unsubstituted or substituted alkylcarbonyl group or the like; R4 represents an unsubstituted or substituted alkylcarbonyl group, an unsubstituted or substituted arylcarbonyl group or the like; A represents a hydroxyl group, a thiol group or the like; m represents any one of integers of 1 to 4; k represents any one of integers of 0 to 3; and k+m?4.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: April 22, 2014
    Assignee: Nippon Soda Co., Ltd
    Inventors: Koichi Kutose, Hiroki Inoue, Shiro Tsubokura
  • Patent number: 8691996
    Abstract: Disclosed is a compound containing a pyridine ring that can be synthesized in an industrially advantageous manner, and is useful as an intermediate for producing tetrazolyloxime derivatives that exhibit fungicidal activity (wherein R0 represents a C1-6 alkoxy group, C1-6 alkoxy-C1-6 alkoxy group or the like, R1 represents a C1-2 alkoxycarbonyl group, acetyl group or the like, Z represents a halogen atom, cyano group or the like, X represents a halogen atom, and n represents an integer of 0 to 3), and industrially advantageous production methods for producing 2-substituted amino-6-halomethylpyridine derivatives and tetrazolyloxime derivatives.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: April 8, 2014
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Hidekazu Miyazaki, Satoru Yanaka, Shiro Tsubokura, Tadashi Sugiura, Kaoru Noda, Kengo Suzuki
  • Publication number: 20130331609
    Abstract: A compound [II] such as ammonium N,N-di(fluorosulfonyl)imide is obtained by reacting a compound [I] such as N,N-di(chlorosulfonyl)imide and NH4F (HF)p. A compound [IV] such as an N,N-di(fluorosulfonyl)imide alkali metal salt is obtained by reacting the obtained compound [II] and an alkali metal compound or the like.
    Type: Application
    Filed: February 24, 2012
    Publication date: December 12, 2013
    Applicant: NIPPON SODA CO., LTD.
    Inventors: Shiro Tsubokura, Yasuyuki Aiura, Toru Suzuki, Michiaki Maruyama
  • Publication number: 20130323155
    Abstract: By reacting a fluorine-containing sulfonylimide ammonium salt such as ammonium N,N-di(fluorosulfonyl)imide with an alkali metal hydroxide such as lithium hydroxide, potassium hydroxide or sodium hydroxide under reduced pressure and at a low temperature of approximately 40° C., a fluorine-containing sulfonylimide alkali metal salt such as lithium N,N-di(fluorosulfonyl)imide, potassium N,N-di(fluorosulfonyl)imide or sodium N,N-di(fluorosulfonyl)imide is obtained.
    Type: Application
    Filed: February 28, 2012
    Publication date: December 5, 2013
    Applicant: NIPPON SODA CO., LTD.
    Inventors: Shiro Tsubokura, Toru Suzuki, Michiaki Maruyama, Yasuyuki Aiura
  • Publication number: 20130323154
    Abstract: A compound [I] such as ammonium N-(chlorosulfonyl)-N-(fluorosulfonyl)imide is reacted with hydrogen fluoride to obtain a compound [II] such as ammonium N,N-di(fluorosulfonyl)imide. The obtained compound [II] is reacted with an alkali metal compound or the like to obtain a compound [IV] such as an N,N-di(fluorosulfonyl)imide alkali metal salt.
    Type: Application
    Filed: January 30, 2012
    Publication date: December 5, 2013
    Applicant: NIPPON SODA CO., LTD.
    Inventors: Shiro Tsubokura, Michiaki Maruyama
  • Publication number: 20130023664
    Abstract: There are provided a nitrogen-containing heterocyclic compound such as a substituted amino-pyridine-N-oxide compound represented by formula (1), which is useful as a synthetic intermediate for an agrochemical and the like; and a method for producing the nitrogen-containing heterocyclic compound. (In formula (1), R1 and R2 each represents a hydrogen atom or an unsubstituted or substituted alkyl group; R3 represents a hydrogen atom, an unsubstituted or substituted alkylcarbonyl group or the like; R4 represents an unsubstituted or substituted alkylcarbonyl group, an unsubstituted or substituted arylcarbonyl group or the like; A represents a hydroxyl group, a thiol group or the like; m represents any one of integers of 1 to 4; k represents any one of integers of 0 to 3; and k+m?4.
    Type: Application
    Filed: March 28, 2011
    Publication date: January 24, 2013
    Applicant: Nippon Soda Co., Ltd.
    Inventors: Koichi Kutose, Hiroki Inoue, Shiro Tsubokura
  • Publication number: 20130012713
    Abstract: Disclosed is a compound containing a pyridine ring that can be synthesized in an industrially advantageous manner, and is useful as an intermediate for producing tetrazolyloxime derivatives that exhibit fungicidal activity (wherein R0 represents a C1-6 alkoxy group, C1-6 alkoxy-C1-6 alkoxy group or the like, R1 represents a C1-2 alkoxycarbonyl group, acetyl group or the like, Z represents a halogen atom, cyano group or the like, X represents a halogen atom, and n represents an integer of 0 to 3), and industrially advantageous production methods for producing 2-substituted amino-6-halomethylpyridine derivatives and tetrazolyloxime derivatives.
    Type: Application
    Filed: March 11, 2011
    Publication date: January 10, 2013
    Inventors: Hidekazu Miyazaki, Satoru Yanaka, Shiro Tsubokura, Tadashi Sugiura, Kaoru Noda, Kengo Suzuki
  • Publication number: 20090306055
    Abstract: The present invention is directed to compounds represented by the formula (1): B-D-Z (1), wherein B represent the following formula (B-1), A represents an optionally substituted imidazole or pyrazole group; E represents the following formula (1a): X represents an oxygen atom, the formula: SOu, or the formula: N—R9; Y represents a carbon atom or a nitrogen atom; D represents an oxygen atom, a sulfur atom or the formula (1a); Z represents (a chroman-2-yl group, a chroman-4-yl group, a 2,3-dihydrobenzofuran-2-yl group, a 2,3-dihydrobenzofuran-3-yl group, etc.) which is substituted with NHR10 or OR11)] or pharmaceutically acceptable salts thereof, and to antioxidants, therapeutic agents for kidney diseases or cerebrovascular disorder, and retinal oxidative damage inhibitors, which include the compounds as the active ingredient.
    Type: Application
    Filed: May 15, 2009
    Publication date: December 10, 2009
    Applicant: NIPPON SODA CO., LTD.
    Inventors: Nobuhiro Umeda, Nobuo Mochizuki, Seiichi Uchida, Mitsumasa Takada, Seiichi Ikeyama, Shiro Tsubokura, Yasuyuki Shiinoki, Fumie Shirato, Hiroko Moroe
  • Publication number: 20090275753
    Abstract: A compound represented by formula (1) or a salt thereof, and an antioxidant drug containing the compound or the salt as an active ingredient, are provided. The compound or salt exhibits effective antioxidant activity in treating ischemic organ disorders and diseases caused by oxidative cell damage, and in inhibiting retinal lesions caused by oxidation due to the effects of light.
    Type: Application
    Filed: November 6, 2006
    Publication date: November 5, 2009
    Applicant: NIPPON SODA CO., LTD.
    Inventors: Shiro Tsubokura, Nobuhiro Umeda, Seiichi Uchida
  • Patent number: 7553837
    Abstract: The present invention is directed to compounds represented by the formula (1): B-D-Z (1), wherein B represent the following formula (B-1), (B-2) or (B-3); A represents an optionally substituted imidazole or pyrazole group; E represents the following formula (1a); X represents an oxygen atom, the formula: SOu, or the formula: N—R9; Y represents a carbon atom or a nitrogen atom; D represents an oxygen atom, a sulfur atom or the formula (1a); Z represents (a chroman-2-yl group, a chroman-4-yl group, a 2,3-dihydrobenzofuran-2-yl group, a 2,3-dihydrobenzofuran-3-yl group, etc.) which is substituted with NHR10 or OR11)] or pharmaceutically acceptable salts thereof, and to antioxidants, therapeutic agents for kidney diseases or cerebrovascular disorder, and retinal oxidative damage inhibitors, which include the compounds as the active ingredient.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: June 30, 2009
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Nobuhiro Umeda, Nobuo Mochizuki, Seiichi Uchida, Mitsumasa Takada, Seiichi Ikeyama, Shiro Tsubokura, Yasuyuki Shiinoki, Fumie Shirato, Hiroko Momoe
  • Publication number: 20060247228
    Abstract: The present invention is directed to compounds represented by the formula (1): B-D-Z??(1) [wherein B represent the following formula (B-1), (B-2) or (B-3); A represents an optionally substituted imidazole or pyrazole group; E represents the following formula (1a): X represents an oxygen atom, the formula: SOu, or the formula: N—R9; Y represents a carbon atom or a nitrogen atom; D represents an oxygen atom, a sulfur atom or the formula (1a); Z represents (a chroman-2-yl group, a chroman-4-yl group, a 2,3-dihydrobenzofuran-2-yl group, a 2,3-dihydrobenzofuran-3-yl group, etc.) which is substituted with NHR10 or OR11)] or pharmaceutically acceptable salts thereof, and to antioxidants, therapeutic agents for kidney diseases or cerebrovascular disorder, and retinal oxidative damage inhibitors, which include the compounds as the active ingredient.
    Type: Application
    Filed: July 30, 2004
    Publication date: November 2, 2006
    Applicant: Nippon Soda Co., Ltd.
    Inventors: Nobuhiro Umeda, Nobuo Mochizuki, Seiichi Uchida, Mitsumasa Takada, Shiro Tsubokura, Yasuyuki Shiinoki, Fumie Shirato, Hiroko Moroe
  • Publication number: 20060189673
    Abstract: The present invention relates to a compound represented by formula (1): (wherein R represents a hydrogen atom or a C1-6 alkyl group which may be substituted, A represents an imidazolyl group or a pyrazolyl group, B represents a group represented by the following formula: (wherein R5 and R6 each independently represents a hydrogen atom, a cyano group, a hydroxyl group, a halogen atom, a C1-6 alkyl group, a C1-6 alkoxy group, or the like, k represents 0 or an integer of 1 to 15, and R5 and R6 may be identical or different from each other, when k is 2 or more), and Z represents a substituted chroman-2-yl group, a substituted 2,3-dihydrobenzofuran-2-yl, a substituted thiochroman-2-yl group, a substituted 2,3-dihydrobenzothiophene-2-yl group, or a substituted 1,3-benzoxathiol-2-yl group).
    Type: Application
    Filed: April 13, 2004
    Publication date: August 24, 2006
    Applicant: Nippon Soda Co., Ltd.
    Inventors: Nobuo Mochizuki, Nobuhiro Umeda, Seiichi Uchida, Seiichi Ikeyama, Shiro Tsubokura, Mitsumasa Takada
  • Patent number: 6462195
    Abstract: Compounds having one or more structures represented by general formula (I) as partial structure thereof, which are typified by pyrimidone and pyridone compounds, have two or more reaction sites in alkylation reactions. Accordingly, there is no process for producing O-alkylated products of these compounds at a high selectivity or such processes, if any, are applicable exclusively to those having limited structures. A process for selectivity O-alkylating such a compound as described above by converting it into the copper salt by using a monovalent copper compound such as copper suboxide and then reacting it with an alkylating agent having a leaving group in the presence of a phosphorus compound such as a phosphite. Pyrimidyloxy derivatives or pyridyloxy derivatives obtained by this reaction is useful as intermediates of pesticides or drugs.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: October 8, 2002
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Mitsuru Takase, Yasuyuki Miyazawa, Shiro Tsubokura