Patents by Inventor Manabu Katsurada
Manabu Katsurada 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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Patent number: 8394935Abstract: An object of the present invention is to provide a industrially appropriate method for producing the ?-anomers of ribofuranose derivatives in a highly selective manner at a high yield. The present invention provides a method for producing ribofuranose derivatives wherein ?-anomers is precipitated from among the generated furanose derivatives by controlling the amount of a reaction reagent used and/or using a poor solvent in the acetolysis reactions of 2,3,5-tri-O-acyl-1-O-alkyl-ribofuranose and 2,3-di-O-acyl-1-O-alkyl-5-deoxy-ribofuranose.Type: GrantFiled: December 7, 2007Date of Patent: March 12, 2013Assignee: API CorporationInventors: Manabu Katsurada, Tomoko Sasaki, Yasuko Nakajima, Nobuo Kyoumura
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Publication number: 20100298550Abstract: It is an object of the present invention to provide a process for producing 1,2,3-tri-O-acetyl-5-deoxy-ribofuranose in an industrially appropriate manner. The present invention provides a process for producing a 1,2,3-tri-O-acetyl-5-deoxy-ribofuranose which comprises hydrogenating a compound represented by the formula (1) or formula (2) in the presence of a metal catalyst: wherein P1 and P2 independently represent a hydrogen atom or an acyl group, OP1 and OP2 may together form an acetal group, and R represents a hydrogen atom, an alkyl group, an aryl group, an aralkyl group, or an acyl group; wherein X1 represents Br or I, P3 and P4 independently represent a hydrogen atom or an acyl group, and R represents a hydrogen atom, an alkyl group, an aryl group, an aralkyl group, or an acyl group.Type: ApplicationFiled: October 3, 2008Publication date: November 25, 2010Applicant: API CORPORATIONInventors: Tomoko Maeda, Hisatoshi Uehara, Naoki Harada, Manabu Katsurada, Mitsuharu Sano
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Publication number: 20100261933Abstract: A method for conveniently preparing 2,2-dichloro-12-(4-chlorophenyl)-10-hydroxydodecanoic acid useful as an active ingredient of therapeutic agents for diseases such as diabetes at a high yield, which comprises the step of reacting a compound represented by the following general formula (A): wherein X represents a halogen atom, and a compound represented by the following general formula (B): CHCl2COOR1 wherein R1 represents hydrogen atom or a protective group of carboxyl group, to prepare a compound represented by the following general formula (C): wherein R1 has the same meaning as that defined above.Type: ApplicationFiled: March 29, 2007Publication date: October 14, 2010Applicant: KOWA COMPANY, LTD.Inventors: Manabu Katsurada, Yasuko Nakajima, Yuzo Kasuga, Kazuhiro Onogi, Toshiaki Oda
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Publication number: 20100105890Abstract: An object of the present invention is to provide a industrially appropriate method for producing the ?-anomers of ribofuranose derivatives in a highly selective manner at a high yield. The present invention provides a method for producing ribofuranose derivatives wherein ?-anomers is precipitated from among the generated furanose derivatives by controlling the amount of a reaction reagent used and/or using a poor solvent in the acetolysis reactions of 2,3,5-tri-O-acyl-1-O-alkyl-ribofuranose and 2,3-di-O-acyl-1-O-alkyl-5-deoxy-ribofuranose.Type: ApplicationFiled: December 7, 2007Publication date: April 29, 2010Applicant: API CORPORATIONInventors: Manabu Katsurada, Tomoko Sasaki, Yasuko Nakajima, Nobuo Kyoumura
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Patent number: 6849633Abstract: The invention provides a novel pest control agent having a high systemic activity and a high safety with reduced adverse influences on the environment neighboring the place to which the agent is applied, and a process for producing the same. Namely, the present invention relates to a novel 1-aryl-3-cyano-5-heteroarylalkylaminopyrazole derivative represented by the following general formula (1) and a process for producing the same, and a pest control agent containing the same as an active ingredient. (wherein X represents N or C-halogen, R1 represents an alkyl group, an alkenyl group, an alkynyl group, or a haloalkyl group, R2 represents hydrogen atom, an alkyl group, or an acyl group, R3 represents hydrogen atom or an alkyl group, A represents any one of the groups represented by A-1 to A-4, R4 represents hydrogen atom, an alkyl group, a halogen atom, and n represents 0, 1, or 2, provided that R1 is a haloalkyl group except a perhaloalkyl group when A is A-1 and n is 0, and that n is not 0 when A is A-4.Type: GrantFiled: December 28, 2001Date of Patent: February 1, 2005Assignee: Nihon Nohyaku Co., Ltd.Inventors: Shuko Okui, Nobuo Kyomura, Toshiki Fukuchi, Ken Tanaka, Manabu Katsurada, Kazuya Okano, Naoko Sumitani, Akiko Miyauchi, Akiko Yabe
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Publication number: 20040030139Abstract: A process for producing a compound represented by the following formula (IV): 1Type: ApplicationFiled: July 30, 2003Publication date: February 12, 2004Inventors: Mari Hara, Yuki Takuma, Manabu Katsurada, Akemi Hosokawa, Youichi Matsumoto, Yuzo Kasuga, Naoyuki Watanabe
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Publication number: 20030191171Abstract: The present invention provides an insecticidal or acaricidal composition having an excellent pesticidal effect and a high safety, containing, as an active ingredient, a pyrazolyl compound of the following general formula (I): 1Type: ApplicationFiled: December 31, 2002Publication date: October 9, 2003Applicant: AGRO-KANESHO CO., LTD.Inventors: Masatsugu Oda, Manabu Katsurada, Yasushi Shiga, Toshiki Fukuchi, Taku Kato
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Publication number: 20030060471Abstract: The invention provides a novel pest control agent having a high systemic activity and a high safety with reduced adverse influences on the environment neighboring the place to which the agent is applied, and a process for producing the same.Type: ApplicationFiled: December 28, 2001Publication date: March 27, 2003Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Shuko Okui, Nobuo Kyomura, Toshiki Fukuchi, Ken Tanaka, Manabu Katsurada, Kazuya Okano, Naoko Sumitani, Akiko Miyauchi, Akiko Yabe
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Publication number: 20020156115Abstract: The present invention provides an insecticidal or acaricidal composition having an excellent pesticidal effect and a high safety, containing, as an active ingredient, a pyrazolyl compound of the following general formula (I): 1Type: ApplicationFiled: March 25, 2002Publication date: October 24, 2002Applicant: AGRO-KANESHO CO., LTD.Inventors: Masatsugu Oda, Manabu Katsurada, Yasushi Shiga, Toshiki Fukuchi, Taku Kato
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Patent number: 5841004Abstract: A novel 3-substituted .alpha.,.beta.-dibromoethylbenzene of formula (I): ##STR1## wherein X represents a halogen atom or a trihalomethyl group, which is useful as an intermediate for pharmaceuticals or agricultural chemicals, is prepared by a simple and high yield process which comprises reacting a 3-substituted .alpha.-bromoethylbenzene represented by formula (II): ##STR2## wherein X is as defined above, or a 3-substituted ethylbenzene represented by formula (III): ##STR3## wherein X is as defined above, with bromine in the presence of a quaternary ammonium salt.Type: GrantFiled: July 17, 1996Date of Patent: November 24, 1998Assignee: Mitsubishi Chemical CorporationInventors: Ken Tanaka, Manabu Katsurada, Akemi Hosokawa
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Patent number: 5407902Abstract: A methoxyiminoacetic acid derivative represented by the following formula (I): ##STR1## wherein X represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; A represents a methoxy group or a methylamino group; when A is a methoxy group, B represents --O--CO-- or --N=C(R.sup.1)-- and when A is a methylamino group, B represents --O--CR.sup.1 R.sup.2 --, wherein R.sup.1 and R.sup.2 independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms or a trifluoromethyl group; and Ar represents an optionally substituted aryl group or an optionally substituted heteroaryl group, and an agricultural/horticultural fungicide containing the same as an active ingredient.Type: GrantFiled: October 1, 1993Date of Patent: April 18, 1995Assignee: Mitsubishi Kasei CorporationInventors: Masatsugu Oda, Manabu Katsurada, Hirofumi Tomita
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Patent number: 5110342Abstract: The present invention provides an indan-1,3-dione derivative represented by the following formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom or a lower alkyl group; R.sup.2 represents a group represented by ##STR2## wherein E represents a (substituted) phenyl group or a (substituted) pyridyl group; Y represents a hydroxyl group; and Z represents a halogen atom, a (substituted) alkylsulfonyloxy group or a (substituted) phenylsulfonyloxy group, or Y and Z are bonded to represent --O--; and A represents a (substituted) 1,3-butadienylene group or a (substituted) 1,3-azabutadienylene group, and a herbicidal composition containing the same as an active ingredient.Type: GrantFiled: September 6, 1991Date of Patent: May 5, 1992Assignee: Mitsubishi Kasei CorporationInventors: Tetsuo Jikihara, Toyohiko Shike, Manabu Katsurada, Hisao Watanabe, Osamu Ikeda
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Patent number: 5076830Abstract: The present invention provides indan-1,3-dione derivatives, including derivatives represented by the following formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom or a lower alkyl group; R.sup.2 represents a group represented by ##STR2## wherein E represents a (substituted) phenyl group or a (substituted) pyridyl group; Y represents a hydroxyl group; and Z represents a halogen atom, a (substituted) alkylsulfonyloxy group or a (substituted) phenylsulfonyloxy group, or Y and Z are bonded to represent --O--; and A represents a (substituted) 1,3-butadienylene group or a (substituted) 1,3-azabutadienylene group, and a herbicidal composition containing the same as an active ingredient.The compound of the formula (I) shows high herbicidal activity against gramineous weeds, cyperaceous weeds, etc. but shows markedly low phytotoxicity against crops.Type: GrantFiled: May 15, 1990Date of Patent: December 31, 1991Assignee: Mitsubishi Kasei CorporationInventors: Tetsuo Jikihara, Toyohiko Shike, Manabu Katsurada, Hisao Watanabe, Osamu Ikeda
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Patent number: 4971620Abstract: Disclosed herein is a sulfonamide compound represented by the formula (I): ##STR1## wherein A represents a phenyl group which may be substituted, B represents a phenyl group which may be substituted, R represents a lower alkyl group, a lower alkoxy group or a lower haloalkyl group, W represents a hydroxyl group or a halogen atom, and z represents a halogen atom, a lower alkysulfonyloxy group which may be substituted, or a phenylsulfonyloxy group which may be substituted, and a herbicidal composition containing the sulfonamide compound as an effective ingredient.Type: GrantFiled: January 27, 1989Date of Patent: November 20, 1990Assignee: Mitsubishi Kasei CorporationInventors: Tetsuo Jikihara, Manabu Katsurada, Toyohiko Shike, Osamu Ikeda, Hisao Watanabe, Tetsuo Takematsu, Koichi Yoneyama
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Patent number: 4960897Abstract: Disclosed herein is an N-[2-(pyridyl)propyl]-N-substituted sulfonamide represented by the following general formula (I): ##STR1## wherein J represents a phenyl group which may be substituted or benzo-condensed, A represents --CH.sub.2 --, --CH.dbd.CH--, --O-- or --N(r)-- (wherein r represents an alkyl group having 1 to 4 carbon atoms), b represents 0 or 1, R represents an alkyl group, alkenyl group, alkynyl group, alkoxy group, fluoroalkyl group or formyl group, D represents a hydroxyl group, E represents a halogen atom, an alkylsulfonyloxy group or a benzenesulfonyloxy group which may be substituted, or D and E represent --O-- in combination, and V represents a pyridyl group which may be substituted, a herbicide containing said N-[2-(pyridyl)propyl]-N-substituted sulfonamide as an active ingredient and a 1-(halogenomethyl)vinylpyridine as an intermediate thereof.Type: GrantFiled: March 2, 1988Date of Patent: October 2, 1990Assignee: Mitsubishi Kasei CorporationInventors: Tetsuo Jikihara, Manabu Katsurada, Toyohiko Shike, Emiko Mikami, Osamu Ikeda