Patents by Inventor Hitoshi Ban
Hitoshi Ban 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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Publication number: 20180230085Abstract: The present invention provides a 1,4-disubstituted imidazole derivative of formula (1?) wherein ring Q1 is optionally-substituted C6-10 aryl group, etc.; R1 and R2 are independently hydrogen atom, etc.; W1 is optionally-substituted C1-4 alkylene group; W2 is —NR3aC(O)— wherein R3a is hydrogen atom or C1-6alkyl group, etc.; ring Q2 is 5- to 10-membered heteroaryl group, etc.; W3 is optionally-substituted C1-4 alkylene group, etc.; n is 1, 2, 3, 4, or 5; R4 is independently halogen atom, optionally-substituted C1-6 alkyl group, etc.; R5 is hydroxy group, etc.; and a pharmacologically acceptable salt thereof, which have a potent inhibitory effect on the sphere-forming capacity of cancer cells and are useful as an orally-available anti-tumor agent.Type: ApplicationFiled: June 21, 2016Publication date: August 16, 2018Inventors: Hitoshi Ban, Manabu Watanabe, Shingo Tojo, Futoshi Hasegawa, Miki Hashizume
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Publication number: 20180194773Abstract: The present invention provides a bicyclic heterocyclic amide derivative of formula (1) wherein ring Q1 is optionally-substituted C6-10 aryl group, etc.; R1 and R2 are independently hydrogen atom, etc.; W1 is optionally-substituted C1-4 alkylene group; W2 is —NR3aC(O)—, etc. wherein R3a is hydrogen atom or C1-6 alkyl group; Cy1 is the following group of formula (11), etc.; ring Q2 is optionally-substituted benzene ring, etc.; n and m are independently 0, 1 or 2, provided that n and m are not simultaneously 0; X is NR5, etc.; R5 is hydrogen atom, etc.; p is 1, 2, 3, 4 or 5; R4 is, independently when two or more exist, hydrogen atom, etc.; and a pharmacologically acceptable salt thereof, which have a potent inhibitory effect on the sphere-forming ability of cancer cells and are useful as an orally-available anti-tumor agent.Type: ApplicationFiled: June 21, 2016Publication date: July 12, 2018Inventors: Hitoshi Ban, Manabu Kusagi, Yosuke Takanashi, Futoshi Hasegawa
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Publication number: 20180111914Abstract: The present invention provides compounds represented by formula (1A), or pharmaceutically acceptable salts. Compounds represented by formula (1A), or pharmaceutically acceptable salts thereof, wherein A1 and A2 are identical or different, and each independently —C(?O) B, —C(?O)CR3AR3BB, —CO2B, —C(?S)OB, —CONR3CB, —C(?S)NR3CB, a hydrogen atom, or the like, wherein A1 and A2 are not both hydrogen atoms, wherein B is an optionally substituted 3- to 12-membered monocyclic or polycyclic heterocyclic group, an optionally substituted 3- to 12-membered cyclic amino group, or a group represented by the following formula (B), wherein the 3- to 12-membered monocyclic or polycyclic heterocyclic group and the 3- to 12-membered cyclic amino group have at least one or more secondary nitrogen atoms in the ring; R1 is a hydrogen atom or the like; R2A, R2B, R2C, and R2D are identical or different, and each independently a hydrogen atom or the like; and R8 is alkyl. wherein * denotes a bonding position.Type: ApplicationFiled: March 25, 2016Publication date: April 26, 2018Applicants: BOSTON BIOMEDICAL, INC., SUMITOMO DAINIPPON PHARMA CO., LTD.Inventors: Hitoshi BAN, Seiji KAMIOKA, Yusuke SAWAYAMA, Chiang Jia LI
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Patent number: 9828362Abstract: The present invention provides a 1,4-disubstituted imidazole derivative of formula (1?) wherein ring Q1 is optionally-substituted C6-10 aryl group, etc.; R1 and R2 are independently hydrogen atom, etc.; W1 is optionally-substituted C1-4 alkylene group; W2 is —NR3aC(O)— wherein R3a is hydrogen atom or C1-6 alkyl group, etc.; ring Q2 is 5- to 10-membered heteroaryl group, etc.; W3 is optionally-substituted C1-4 alkylene group, etc.; n is 1, 2, 3, 4, or 5; R4 is independently halogen atom, optionally-substituted C1-6 alkyl group, etc.; R5 is hydroxy group, etc.; and a pharmacologically acceptable salt thereof, which have a potent inhibitory effect on the sphere-forming capacity of cancer cells and are useful as an orally-available anti-tumor agent.Type: GrantFiled: February 27, 2017Date of Patent: November 28, 2017Assignee: Sumitomo Dainippon Pharma Co., Ltd.Inventors: Hitoshi Ban, Manabu Kusagi, Shingo Tojo, Futoshi Hasegawa, Miki Hashizume
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Publication number: 20170166552Abstract: The present invention provides a 1,4-disubstituted imidazole derivative of formula (1?) wherein ring Q1 is optionally-substituted C6-10 aryl group, etc.; R1 and R2 are independently hydrogen atom, etc.; W1 is optionally-substituted C1-4 alkylene group; W2 is —NR3aC(O)— wherein R3a is hydrogen atom or C1-6 alkyl group, etc.; ring Q2 is 5- to 10-membered heteroaryl group, etc.; W3 is optionally-substituted C1-4 alkylene group, etc.; n is 1, 2, 3, 4, or 5; R4 is independently halogen atom, optionally-substituted C1-6 alkyl group, etc.; R5 is hydroxy group, etc.; and a pharmacologically acceptable salt thereof, which have a potent inhibitory effect on the sphere-forming capacity of cancer cells and are useful as an orally-available anti-tumor agent.Type: ApplicationFiled: February 27, 2017Publication date: June 15, 2017Inventors: Hitoshi Ban, Manabu Watanabe, Shingo Tojo, Futoshi Hasegawa, Miki Hashizume
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Publication number: 20170015677Abstract: This invention provides a compound represented by formula (1) or a pharmaceutically acceptable salt thereof. Specifically, the present invention provides a compound represented by formula (1) or a pharmaceutically acceptable salt thereof [Therein, A is O, S, or N—R6; ring G is a 5-membered or 6-membered aromatic ring, etc., including 1-3 heteroatoms selected from O, S and N as constituent atoms; R1 and R2 are each independently a hydrogen atom, a halogen atom, or an optionally-substituted C1-6 alkyl carbonyl group, etc.; R3, R4 and R5 are each independently a hydrogen atom, a halogen atom, or an optionally-substituted C1-6 alkyl carbonyl group, etc.; and R6 is a hydrogen atom or an optionally-substituted C1-6 alkyl group, etc.].Type: ApplicationFiled: March 30, 2015Publication date: January 19, 2017Applicant: Boston Biomedical, Inc.Inventors: Hitoshi BAN, Seiji KAMIOKA, Shoukou RI, Tomoyuki FURUTA, Hiroyuki KITANO, Chiang Jia Li
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Publication number: 20160114019Abstract: A compound represented by the formula (1): wherein Xa and Ya are each a single bond and the like, cancer antigen peptide A is an MHC class I-restricted WT1 peptide consisting of 7-30 amino acid residues, R1 is a hydrogen atom, a group represented by the formula (2): wherein Xb and Yb are each a single bond and the like, cancer antigen peptide B has a sequence different from that of the cancer antigen peptide A, and is an MHC class I-restricted WT1 peptide consisting of 7-30 amino acid residues, or cancer antigen peptide C, and cancer antigen peptide C has a sequence different from that of the cancer antigen peptide A, and is an MHC class I-restricted WT1 peptide or an MHC class II-restricted WT1 peptide, consisting of 7-30 amino acid residues containing one cysteine residue, or a salt thereof, and the like.Type: ApplicationFiled: December 30, 2015Publication date: April 28, 2016Applicants: SUMITOMO DAINIPPON PHARMA CO., LTD., INTERNATIONAL INSTITUTE OF CANCER IMMUNOLOGY, INC.Inventors: Chiang Jia Li, Hitoshi Ban, Yukihiro Nishio, Masashi Goto, Toshio Nishihara, Yosuke Takanashi
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Publication number: 20160045582Abstract: The present invention provides a compound represented by the formula (1): wherein Xa and Ya are each a single bond or the like, cancer antigen peptide A is an MHC class I-restricted cancer antigen peptide, and R1 is a hydrogen atom; a group represented by the formula (2): wherein Xb and Yb are each a single bond or the like, and cancer antigen peptide B is different from the cancer antigen peptide A and is an MHC class I or II-restricted cancer antigen peptide; a group represented by the formula (3): wherein Xc and Yc are each a single bond or the like, and cancer antigen peptide C is an MHC class II-restricted cancer antigen peptide; or cancer antigen peptide D, wherein the cancer antigen peptide D is an MHC class I or II-restricted cancer antigen peptide containing one cysteine residue, or a salt thereof, for example.Type: ApplicationFiled: March 28, 2014Publication date: February 18, 2016Applicant: SUMITOMO DAINIPPON PHARMA CO., LTD.Inventors: Hitoshi BAN, Yukihiro NISHIO, Masashi GOTO, Yosuke TAKANASHI
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Patent number: 9248173Abstract: A compound represented by the formula (1): wherein Xa and Ya are each a single bond and the like, cancer antigen peptide A is an MHC class I-restricted WT1 peptide consisting of 7-30 amino acid residues, R1 is a hydrogen atom, a group represented by the formula (2): wherein Xb and Yb are each a single bond and the like, cancer antigen peptide B has a sequence different from that of the cancer antigen peptide A, and is an MHC class I-restricted WT1 peptide consisting of 7-30 amino acid residues, or cancer antigen peptide C, and cancer antigen peptide C has a sequence different from that of the cancer antigen peptide A, and is an MHC class I-restricted WT1 peptide or an MHC class II-restricted WT1 peptide, consisting of 7-30 amino acid residues containing one cysteine residue, or a salt thereof, and the like.Type: GrantFiled: May 7, 2015Date of Patent: February 2, 2016Assignees: SUMITOMO DAINIPPON PHARMA CO., LTD., INTERNATIONAL INSTITUTE OF CANCER IMMUNOLOGY, INC.Inventors: Chiang Jia Li, Hitoshi Ban, Yukihiro Nishio, Masashi Goto, Toshio Nishihara, Yosuke Takanashi
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Patent number: 9181302Abstract: A compound represented by the formula (1): wherein Xa and Ya are each a single bond and the like, cancer antigen peptide A is an MHC class I-restricted WT1 peptide consisting of 7-30 amino acid residues, R1 is a hydrogen atom, a group represented by the formula (2): wherein Xb and Yb are each a single bond and the like, cancer antigen peptide B has a sequence different from that of the cancer antigen peptide A, and is an MHC class I-restricted WT1 peptide consisting of 7-30 amino acid residues, or cancer antigen peptide C, and cancer antigen peptide C has a sequence different from that of the cancer antigen peptide A, and is an MHC class I-restricted WT1 peptide or an MHC class II-restricted WT1 peptide, consisting of 7-30 amino acid residues containing one cysteine residue, or a salt thereof, and the like.Type: GrantFiled: November 20, 2014Date of Patent: November 10, 2015Assignees: SUMITOMO DAINIPPON PHARMA CO., LTD., INTERNATIONAL INSTITUTE OF CANCER IMMUNOLOGY, INC.Inventors: Chiang Jia Li, Hitoshi Ban, Yukihiro Nishio, Masashi Goto, Toshio Nishihara, Yosuke Takanashi
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Publication number: 20150238587Abstract: A compound represented by the formula (1): wherein Xa and Ya are each a single bond and the like, cancer antigen peptide A is an MHC class I-restricted WT1 peptide consisting of 7-30 amino acid residues, R1 is a hydrogen atom, a group represented by the formula (2): wherein Xb and Yb are each a single bond and the like, cancer antigen peptide B has a sequence different from that of the cancer antigen peptide A, and is an MHC class I-restricted WT1 peptide consisting of 7-30 amino acid residues, or cancer antigen peptide C, and cancer antigen peptide C has a sequence different from that of the cancer antigen peptide A, and is an MHC class I-restricted WT1 peptide or an MHC class II-restricted WT1 peptide, consisting of 7-30 amino acid residues containing one cysteine residue, or a salt thereof, and the like.Type: ApplicationFiled: May 7, 2015Publication date: August 27, 2015Applicants: Sumitomo Dainippon Pharma Co., Ltd., International Institute of Cancer Immunology, Inc.Inventors: Chiang Jia LI, Hitoshi Ban, Yukihiro Nishio, Masashi Goto, Toshio Nishihara, Yosuke Takanashi
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Publication number: 20150080321Abstract: A compound represented by the formula (1): wherein Xa and Ya are each a single bond and the like, cancer antigen peptide A is an MHC class I-restricted WT1 peptide consisting of 7-30 amino acid residues, R1 is a hydrogen atom, a group represented by the formula (2): wherein Xb and Yb are each a single bond and the like, cancer antigen peptide B has a sequence different from that of the cancer antigen peptide A, and is an MHC class I-restricted WT1 peptide consisting of 7-30 amino acid residues, or cancer antigen peptide C, and cancer antigen peptide C has a sequence different from that of the cancer antigen peptide A, and is an MHC class I-restricted WT1 peptide or an MHC class II-restricted WT1 peptide, consisting of 7-30 amino acid residues containing one cysteine residue, or a salt thereof, and the like.Type: ApplicationFiled: November 20, 2014Publication date: March 19, 2015Applicants: Sumitomo Dainippon Pharma Co., Ltd., International Institute of Cancer Immunology, Inc.Inventors: Chiang Jia LI, Hitoshi Ban, Yukihiro Nishio, Masashi Goto, Norio Nishihara
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Publication number: 20140378668Abstract: A new and versatile class of cyclic diazodicarboxamides that reacts efficiently and selectively with phenols and the phenolic side chain of tyrosine through an Ene-like reaction is reported. This mild aqueous tyrosine ligation reaction works over a broad pH range and expands the repertoire of aqueous chemistries available for small molecule, peptide, and protein modification. The tyrosine ligation reactions are shown to be compatible with the labeling of native enzymes and antibodies in buffered aqueous solution. This reaction provides a novel synthetic approach to bispecific antibodies. This reaction will find broad utility in peptide and protein chemistry and in the chemistry of phenol-containing compounds.Type: ApplicationFiled: June 25, 2014Publication date: December 25, 2014Inventors: Carlos F. Barbas, III, Hitoshi Ban, Julia Gavrilyuk
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Patent number: 8765920Abstract: A new and versatile class of cyclic diazodicarboxamides that reacts efficiently and selectively with phenols and the phenolic side chain of tyrosine through an Ene-like reaction is reported. This mild aqueous tyrosine ligation reaction works over a broad pH range and expands the repertoire of aqueous chemistries available for small molecule, peptide, and protein modification. The tyrosine ligation reactions are shown to be compatible with the labeling of native enzymes and antibodies in buffered aqueous solution. This reaction provides a novel synthetic approach to bispecific antibodies. This reaction will find broad utility in peptide and protein chemistry and in the chemistry of phenol-containing compounds.Type: GrantFiled: December 23, 2010Date of Patent: July 1, 2014Assignee: The Scripps Research InstituteInventors: Carlos F. Barbas, III, Hitoshi Ban, Julia Gavrilyuk
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Publication number: 20120289682Abstract: A new and versatile class of cyclic diazodicarboxamides that reacts efficiently and selectively with phenols and the phenolic side chain of tyrosine through an Ene-like reaction is reported. This mild aqueous tyrosine ligation reaction works over a broad pH range and expands the repertoire of aqueous chemistries available for small molecule, peptide, and protein modification. The tyrosine ligation reactions are shown to be compatible with the labeling of native enzymes and antibodies in buffered aqueous solution. This reaction provides a novel synthetic approach to bispecific antibodies. This reaction will find broad utility in peptide and protein chemistry and in the chemistry of phenol-containing compounds.Type: ApplicationFiled: December 23, 2010Publication date: November 15, 2012Inventors: Carlos F. Barbas, III, Hitoshi Ban, Julia Gavrilyuk
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Publication number: 20080096922Abstract: A compound of the formula (1): wherein m, n and p is independently an integer of 0 to 4 with the proviso that 3?m+n?8; X is the formula: NR4, etc.; R1, R3 and R4 are a substituted or unsubstituted aryl group, etc.; R2 is a hydrogen atom, etc.; a, b, c, d, e and f are a hydrogen atom or a substituted or unsubstituted alkyl group, etc.; Y is the formula: —SO2—, etc.; and Z is an oxygen atom, etc.; or a prodrug thereof or a pharmaceutically acceptable salt of the same has an activity of potentiating an expression of a low density lipoprotein receptor and thus is useful as an agent for treating hyperlipidemia or arteriosclerosis.Type: ApplicationFiled: April 4, 2005Publication date: April 24, 2008Applicant: Dainippon Sumitomo Pharma Co., Ltd.Inventors: Hitoshi Ban, Shigehiro Asano
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Publication number: 20070078120Abstract: The invention provides a compound of the following formula (1): wherein m, n, and p are independently an integer of 0-4, provided 3?m+n?8; X is nitrogen atom or a group of the formula: C—R15; Y is a substituted or unsubstituted aromatic group, etc.; R15, R1, R2, R3, R4, R5, R6 and R7 are hydrogen atom, a substituted or unsubstituted alkyl group, etc.; and Z is hydrogen atom, cyano group, etc., or a prodrug thereof, or a pharmaceutically acceptable salt thereof, which exhibits an action for enhancing LDL receptor expression, and is useful as a medicament for treating hyperlipidemia, atherosclerosis, etc.Type: ApplicationFiled: October 19, 2004Publication date: April 5, 2007Inventors: Hitoshi Ban, Satoshi Ohnuma, Norie Tsuboya, Shigehiro Asano
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Patent number: 7067528Abstract: Hydrates of N-[1-butyl-4-[3-[3-(hydroxy)propoxy]-phenyl]-1,2-dihydro-2-oxo-1,8-naphthyridin-3-yl]-N?-(2,6-diisopropyl-4-aminophenyl)urea hydrochloride of the formula: are quite excellent in stability than amorphous one and are more preferable for medicaments.Type: GrantFiled: August 14, 2002Date of Patent: June 27, 2006Assignee: Sumitomo Pharmaceuticals Co., Ltd.Inventors: Masami Muraoka, Satoshi Ohnuma, Hitoshi Ban
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Publication number: 20050165057Abstract: A compound of the formula (1): wherein m and n are independently an integer of 0 to 4, and m+n=4; L is cycloalkyl, substituted cycloalkyl, aromatic group, or substituted aromatic group; Y is aryl or substituted aryl; R is hydrogen, alkyl, etc.; R31, R32, R33, R34, R35 and R36 are the same or different and are selected, if two or more exist, independently from hydrogen, alkyl, etc., or a prodrug thereof, or a pharmaceutically acceptable salt of the same, which exhibits ACAT inhibitory activity, and is useful as an agent for treatment of hyperlipidemia and atherosclerosis.Type: ApplicationFiled: April 22, 2003Publication date: July 28, 2005Inventors: Hitoshi Ban, Masami Muraoka
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Publication number: 20040116463Abstract: Hydrates of N-[1-butyl-4-[3-[3-(hydroxy)propoxy]-phenyl]-1,2-dihydro-2-oxo-1,8-naphthyridin-3-yl]-N′-(2,6-diisopropyl-4-aminophenyl)urea hydrochloride of the formula: 1Type: ApplicationFiled: October 14, 2003Publication date: June 17, 2004Inventors: Masami Muroaka, Satoshi Ohnuma, Hitoshi Ban