Patents by Inventor Hidetoshi Tsunoda
Hidetoshi Tsunoda 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: 9425484Abstract: The invention provides a non-aqueous electrolyte solution containing a phosphonosulfonic acid compound represented by formula (I): wherein, in formula (I), R1, R2 and R3 each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a haloalkyl group having 1 to 6 carbon atoms, a phenyl group, a benzyl group, or a group represented by formula (II); R4 and R5 each independently represent a hydrogen atom, a halogen atom, or an alkyl group having 1 to 6 carbon atoms; and n represents an integer from 1 to 6; and wherein, in formula (II), R6, R7 and R8 each independently represent an alkyl group having 1 to 6 carbon atoms, a phenyl group, or a benzyl group; m represents an integer from 0 to 2; and * represents a position of bonding with the oxygen atom in formula (I).Type: GrantFiled: October 19, 2012Date of Patent: August 23, 2016Assignee: MITSUI CHEMICALS, INC.Inventors: Shigeru Mio, Mitsuo Nakamura, Hidenobu Nogi, Satoko Fujiyama, Hidetoshi Tsunoda
-
Patent number: 9227950Abstract: A non-aqueous electrolyte solution containing a cyclic sulfate compound represented by formula (I) is provided, wherein in formula (I), R1 represents a group represented by formula (II) or a group represented by formula (III); R2 represents a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, a group represented by formula (II), or a group represented by formula (III); and in formula (II), R3 represents a halogen atom, an alkyl group having from 1 to 6 carbon atoms, a halogenated alkyl group having from 1 to 6 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, or a group represented by formula (IV).Type: GrantFiled: October 21, 2011Date of Patent: January 5, 2016Assignee: MITSUI CHEMICALS, INC.Inventors: Shigeru Mio, Mitsuo Nakamura, Kaichiro Haruta, Hidenobu Nogi, Satoko Fujiyama, Takashi Hayashi, Hidetoshi Tsunoda
-
Publication number: 20140272556Abstract: The invention provides a non-aqueous electrolyte solution containing a phosphonosulfonic acid compound represented by formula (I): wherein, in formula (I), R1, R2 and R3 each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a haloalkyl group having 1 to 6 carbon atoms, a phenyl group, a benzyl group, or a group represented by formula (II); R4 and R5 each independently represent a hydrogen atom, a halogen atom, or an alkyl group having 1 to 6 carbon atoms; and n represents an integer from 1 to 6; and wherein, in formula (II), R6, R7 and R8 each independently represent an alkyl group having 1 to 6 carbon atoms, a phenyl group, or a benzyl group; m represents an integer from 0 to 2; and * represents a position of bonding with the oxygen atom in formula (I).Type: ApplicationFiled: October 19, 2012Publication date: September 18, 2014Applicant: Mitsui Chemicals, Inc.Inventors: Shigeru Mio, Mitsuo Nakamura, Hidenobu Nogi, Satoko Fujiyama, Hidetoshi Tsunoda
-
Publication number: 20130171514Abstract: A non-aqueous electrolyte solution containing a cyclic sulfate compound represented by formula (I) is provided, wherein in formula (I), R1 represents a group represented by formula (II) or a group represented by formula (III); R2 represents a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, a group represented by formula (II), or a group represented by formula (III); and in formula (II), R3 represents a halogen atom, an alkyl group having from 1 to 6 carbon atoms, a halogenated alkyl group having from 1 to 6 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, or a group represented by formula (IV).Type: ApplicationFiled: October 21, 2011Publication date: July 4, 2013Applicant: Mitsui Chemicals, Inc.Inventors: Shigeru Mio, Mitsuo Nakamura, Kaichiro Haruta, Hidenobu Nogi, Satoko Fujiyama, Takashi Hayashi, Hidetoshi Tsunoda
-
Patent number: 7622563Abstract: A glycoside in which at least two phenolic hydroxyl groups of a compound having at least two phenolic hydroxyl groups in its molecule are glycosidically linked to anomeric carbon atoms of at least two sugar molecules can be prepared with high yield by a method including the step of allowing phenolic hydroxyl groups of a compound having at least two phenolic hydroxyl groups in its molecule to react with sugar molecules each having an acetylated hydroxyl group attached to an anomeric carbon atom in the presence of an organic solvent and an acid catalyst while removing acetic acid formed during the reaction from the reaction system.Type: GrantFiled: July 11, 2003Date of Patent: November 24, 2009Assignee: Mitsui Chemicals, Inc.Inventors: Masayuki Furuya, Hidetoshi Tsunoda, Tsuneji Suzuki, Akinori Nagatomo, Masaru Wada
-
Publication number: 20090281332Abstract: Provided is a process for producing an ester or alcohol using a fluoroimidinium sulfonate derivative represented by the general formula (9) or a fluoroimidinium carboxylate derivative represented by the general formula (6) and using as a raw material alcohol involving inversion of steric configuration. Further provided are a fluoroimidinium sulfonate derivative represented by the general formula (9), and a process for producing the same.Type: ApplicationFiled: June 19, 2007Publication date: November 12, 2009Applicant: MITSUI CHEMICALS, INC.Inventors: Hidetoshi Tsunoda, Kouki Fukumura
-
Publication number: 20080114053Abstract: An object of the present invention is to provide a method for efficiently producing a high-purity fluorinated proline derivative with high yield. A method for producing a compound represented by the general formula (2), (In the formula, R1 represents an unsubstituted or substituted alkyl group having 1 to 6 carbon atoms or the like, and R2 represents an unsubstituted or substituted alkyl group having 1 to 6 carbon atoms or the like, and R3 represents a hydroxyl group or the like) wherein a compound represented by the general formula (1) (In the formula, R1 and R2 are defined as in the general formula (1)) is reacted with a fluorination agent to obtain a reaction product containing the compound represented by the general formula (2) and a by-products; and bringing chlorine, bromine, iodine, hypochlorous acid, hypochlorite, hypobromous acid, hypobromite or N-halogenosuccinimide into action on the reaction product to chemically change the by-product.Type: ApplicationFiled: January 26, 2006Publication date: May 15, 2008Applicant: Mitsui Chemicals, Inc.Inventors: Hidetoshi Tsunoda, Tsuneji Suzuki
-
Patent number: 7271185Abstract: A method for producing an optically active 2-phenyl-2,3,-dihydroxypropyl azole derivative, which is a useful compound in various fields. An optically active ?-hydroxycarboxylic acid derivative represented by general formula (1) is used as a starting material and is allowed to react with an azole acetic acid derivative (2) to produce a new, optically active azole-alkyl ketone derivative (3). Subsequently, a new, optically active azole-methyl alcohol derivative (5) is produced by highly diastereoselective alkylation by an appropriate combination of a protective group and an organometallic reagent (4).Type: GrantFiled: February 7, 2003Date of Patent: September 18, 2007Assignee: Mitsui Chemicals, Inc.Inventors: Tsuneji Suzuki, Hidetoshi Tsunoda
-
Patent number: 7026515Abstract: A readily available and inexpensive natural ?-amino acid is converted into a compound represented by formula (1), which is then reacted with an organometallic reagent represented by formula (2) to give an optically active 5-hydroxyoxazolidine represented by formula (3), which is then treated with an acid to provide an optically active aminoketone represented by formula (4). The product is then converted into an optically active aminoalcohol represented by formula (5) or (6) by, for example reduction.Type: GrantFiled: November 9, 2001Date of Patent: April 11, 2006Assignee: Mitsui Chemicals, Inc.Inventors: Hidetoshi Tsunoda, Kunio Okumura, Kengo Otsuka
-
Publication number: 20050272921Abstract: A glycoside in which at least two phenolic hydroxyl groups of a compound having at least two phenolic hydroxyl groups in its molecule are glycosidically linked to anomeric carbon atoms of at least two sugar molecules can be prepared with high yield by a method including the step of allowing phenolic hydroxyl groups of a compound having at least two phenolic hydroxyl groups in its molecule to react with sugar molecules each having an acetylated hydroxyl group attached to an anomeric carbon atom in the presence of an organic solvent and an acid catalyst while removing acetic acid formed during the reaction from the reaction system.Type: ApplicationFiled: July 11, 2003Publication date: December 8, 2005Applicant: MITSUI CHEMICALS, INC.Inventors: Masayuki Furuya, Hidetoshi Tsunoda, Tsuneji Suzuki, akinori Nagatomo, Masaru Wada
-
Publication number: 20050085521Abstract: A method for producing an optically active 2-phenyl-2,3,-dihydroxypropyl azole derivative, which is a useful compound in various fields. An optically active ?-hydroxycarboxylic acid derivative represented by general formula (1) is used as a starting material and is allowed to react with an azole acetic acid derivative (2) to produce a new, optically active azole-alkyl ketone derivative (3). Subsequently, a new, optically active azole-methyl alcohol derivative (5) is produced by highly diastereoselective alkylation by an appropriate combination of a protective group and an organometallic reagent (4). Furthermore, the optically active azole-methyl alcohol derivative (5) is selectively deprotected to produce an optically active 2-phenyl-2,3-dihydroxypropyl azole derivative (6).Type: ApplicationFiled: February 7, 2003Publication date: April 21, 2005Inventors: Tsuneji Suzuki, Hidetoshi Tsunoda
-
Publication number: 20040030144Abstract: A readily available and inexpensive natural &agr;-amino acid is converted into a compound represented by formula (1), which is then reacted with an organometallic reagent represented by formula (2) to give an optically active 5-hydroxyoxazolidine represented by formula (3), which is then treated with an acid to provide an optically active aminoketone represented by formula (4). The product is then converted into an optically active aminoalcohol represented by formula (5) or (6) by, for example reduction.Type: ApplicationFiled: May 9, 2003Publication date: February 12, 2004Inventors: Hidetoshi Tsunoda, Kunio Okumura, Kengo Otsuka
-
Patent number: 6670447Abstract: This invention provides amino acid N-carboxyanhydrides, each of which has an N-acyl substituent on its nitrogen atom, is represented by the following formula (1): readily reacts with nucleophilic reagents such as free amino acids, alcohols, anions or the like, and are intermediates useful for the high-yield production of amino acid derivatives, optically active compounds, peptides, polypeptides and the like useful in many fields lead by the fields of pharmaceuticals and agrochemicals, and also provides a process for the production of the amino acid N-carboxyanhydrides. Further, the present invention also provides a process for the production of diamides, which uses the compounds of the formula (1) and amine derivatives represented by the following formula (7): These diamides can also be suitably used for the production of amino acid derivatives, optically active compounds, peptides, polypeptides and the like.Type: GrantFiled: March 4, 2002Date of Patent: December 30, 2003Assignee: Mitsui Chemicals, Inc.Inventors: Hidetoshi Tsunoda, Michiru Sekiguchi, Hajime Iizuka, Kazuya Sakai
-
Publication number: 20030212100Abstract: A quinoline derivative represented by the following formula (1): 1Type: ApplicationFiled: September 20, 2002Publication date: November 13, 2003Inventors: Hidetoshi Tsunoda, Nobuyuki Fukazawa, Hiroshi Nagase, Kyoko Chiba, Toshifumi Nakao, Noriaki Asada, Toshifumi Yamaki, Kenji Kibayashi, Hideyuki Migita, Maki Morikawa
-
Publication number: 20030109570Abstract: A benzothiophene derivative represented by formula (1): 1Type: ApplicationFiled: September 20, 2002Publication date: June 12, 2003Inventors: Hidetoshi Tsunoda, Nobuyuki Fukuzawa, Kyoko Chiba, Toshifumi Nakao, Noriaki Asada, Nozomi Takebayashi, Kenji Kibayashi, Hideyuki Migita, Maki Morikawa
-
Publication number: 20020173664Abstract: This invention provides amino acid N-carboxyanhydrides, each of which has an N-acyl substituent on its nitrogen atom, is represented by the following formula (1): 1Type: ApplicationFiled: March 4, 2002Publication date: November 21, 2002Inventors: Hidetoshi Tsunoda, Michiru Sekiguchi, Hajime Iizuka, Kazuya Sakai
-
Patent number: 5861520Abstract: The present invention provides a compound which is a glycolipid analog having a novel structure represented by the formula (1): ##STR1## wherein Z represents an imino group, an oxygen atom or a sulfur atom; m is an integer of from 3 to 12; and n is an integer of from 4 to 22; and shows a potent activity of inhibiting glycosidase and has potential physiological activities, for example, antiviral activity. The invention also provides a glycosidase inhibitor which comprises said glycolipid analog as an active ingredient.Type: GrantFiled: May 31, 1995Date of Patent: January 19, 1999Assignee: Seikagaku Kogyo Kabushiki Kaisha (Seikagaku Corporation)Inventors: Seiichiro Ogawa, Hidetoshi Tsunoda, Jinichi Inokuchi