Patents by Inventor Eiji Kawaminami

Eiji Kawaminami 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: 8815920
    Abstract: A substituted amide compound is useful as an active ingredient of a pharmaceutical composition, in particular a pharmaceutical composition for treating diseases caused by lysophosphatidic acid (LPA). The compound is of a formula: In this formula, A is an optionally substituted aryl, etc.; B is an optionally substituted 5-membered aromatic hetero ring group; X is a single bond or —(CRX1RX2)n—; n is 1, 2, 3, or 4; RX1 and RX2 are hydrogen, etc.; Y1 to Y5 are each CRY or N; each RY is hydrogen, etc.; R1 and R2 are hydrogen, etc.; m is 1, 2, or 3; R3 is hydrogen, etc.; and R4 is an optically substituted lower alkyl, etc.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: August 26, 2014
    Assignee: Astellas Pharma Inc.
    Inventors: Eiji Kawaminami, Tatsuhisa Takahashi, Takatoshi Kanayama, Yuta Fukuda, Hiroyuki Kaizawa, Yutaka Kondoh, Ryushi Seo, Kazuyuki Kuramoto, Kazuhiko Take, Kazuyuki Sakamoto
  • Patent number: 8669246
    Abstract: A substituted amide compound is useful as an active ingredient of a pharmaceutical composition, in particular a pharmaceutical composition for treating diseases caused by lysophosphatidic acid (LPA). The compound is of a formula: In this formula, A is an optionally substituted aryl, etc.; B is an optionally substituted 5-membered aromatic hetero ring group; X is a single bond or —(CRX1RX2)n—; n is 1, 2, 3, or 4; RX1 and RX2 are hydrogen, etc.; Y1 to Y5 are each CRY or N; each RY is hydrogen, etc.; R1 and R2 are hydrogen, etc.; m is 1, 2, or 3; R3 is hydrogen, etc.; and R4 is an optionally substituted lower alkyl, etc.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: March 11, 2014
    Assignee: Astellas Pharma Inc.
    Inventors: Eiji Kawaminami, Tatsuhisa Takahashi, Takatoshi Kanayama, Yuta Fukuda, Hiroyuki Kaizawa, Yutaka Kondoh, Ryushi Seo, Kazuyuki Kuramoto, Kazuhiko Take, Kazuyuki Sakamoto
  • Publication number: 20130231320
    Abstract: A substituted amide compound is useful as an active ingredient of a pharmaceutical composition, in particular a pharmaceutical composition for treating diseases caused by lysophosphatidic acid (LPA). The compound is of a formula: In this formula, A is an optionally substituted aryl, etc.; B is an optionally substituted 5-membered aromatic hetero ring group; X is a single bond or —(CRX1RX2)n—; n is 1, 2, 3, or 4; RX1 and RX2 are hydrogen, etc.; Y1 to Y5 are each CRY or N; each RY is hydrogen, etc.; R1 and R2 are hydrogen, etc.; m is 1, 2, or 3; R3 is hydrogen, etc.; and R4 is an optically substituted lower alkyl, etc.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 5, 2013
    Applicant: Astellas Pharma Inc.
    Inventors: Eiji KAWAMINAMI, Tatsuhisa TAKAHASHI, Takatoshi KANAYAMA, Yuta FUKUDA, Hiroyuki KAIZAWA, Yutaka KONDOH, Ryushi SEO, Kazuyuki KURAMOTO, Kazuhiko TAKE, Kazuyuki SAKAMOTO
  • Publication number: 20120184521
    Abstract: A substituted amide compound is useful as an active ingredient of a pharmaceutical composition, in particular a pharmaceutical composition for treating diseases caused by lysophosphatidic acid (LPA). The compound is of a formula: In this formula, A is an optionally substituted aryl, etc.; B is an optionally substituted 5-membered aromatic hetero ring group; X is a single bond or —(CRX1RX2)n—; n is 1, 2, 3, or 4; RX1 and RX2 are hydrogen, etc.; Y1 to Y5 are each CRY or N; each RY is hydrogen, etc.; R1 and R2 are hydrogen, etc.; m is 1, 2, or 3; R3 is hydrogen, etc.; and R4 is an optionally substituted lower alkyl, etc.
    Type: Application
    Filed: September 24, 2010
    Publication date: July 19, 2012
    Applicant: Astellas Pharma Inc.
    Inventors: Eiji Kawaminami, Tatsuhisa Takahashi, Takatoshi Kanayama, Yuta Fukuda, Hiroyuki Kaizawa, Yutaka Kondoh, Ryushi Seo, Kazuyuki Kuramoto, Kazuhiko Take, Kazuyuki Sakamoto
  • Patent number: 8076367
    Abstract: Compounds useful as GnRH receptor antagonists are provided. The present inventors have further examined propane-1,3-dione derivatives and confirmed as a result that a propane-1,3-dione having 2-(1,3-dihydro-2H-benzimidazol-2-ylidene), or a compound which has benzene or thiophene ring substituted with a group derived from 1-hydroxymethyl, shows excellent availability, in addition to its excellent GnRH receptor antagonism, thereby accomplishing the invention. Since the compound of the invention shows excellent availability, in addition to its strong GnRH receptor antagonism, it can be expected that it exerts superior drug effect in the living body, and it is useful for the treatment of sex hormone dependent diseases such as prostate cancer, breast cancer, endometriosis, uterine leiomyoma, benign prostatic hypertrophy and the like.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: December 13, 2011
    Assignee: Astellas Pharma Inc.
    Inventors: Masaaki Hirano, Eiji Kawaminami, Isao Kinoyama, Shunichiro Matsumoto, Kei Ohnuki, Kazuyoshi Obitsu, Toshiyuki Kusayama
  • Patent number: 7960562
    Abstract: It is intended to provide a compound useful as a GnRH receptor antagonist. The inventors further investigated propane-1,3-dione derivatives. As a result, they confirmed that a compound having a benzene ring or a thiophene ring substituted with a group represented by —SO2—R3 in a propane-1,3-dione derivative having 2-(1,3-dihydro-2H-benzimidazol-2-ylidene) has an excellent GnRH receptor antagonistic effect and accomplished the present invention. Because the compound of the present invention has a potent GnRH receptor antagonistic effect, it is useful for the treatment of sex hormone-dependent diseases, particularly GnRH-related diseases. Further, because the compound of the present invention has an excellent metabolic stability in human and few drug interactions, therefore it has preferable characteristics as a pharmaceutical used for the above-mentioned diseases.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: June 14, 2011
    Assignee: Astellas Pharma Inc.
    Inventors: Masaaki Hirano, Isao Kinoyama, Shunichiro Matsumoto, Eiji Kawaminami, Kei Ohnuki, Hirofumi Yamamoto, Kazuhiko Osoda, Tatsuhisa Takahashi, Takashi Shin, Takanori Koike, Itsuro Shimada, Hiroyuki Hisamichi, Toshiyuki Kusayama
  • Publication number: 20100173946
    Abstract: Compounds useful as GnRH receptor antagonists are provided. The present inventors have further examined propane-1,3-dione derivatives and confirmed as a result that a propane-1,3-dione having 2-(1,3-dihydro-2H-benzimidazol-2-ylidene), or a compound which has benzene or thiophene ring substituted with a group derived from 1-hydroxymethyl, shows excellent availability, in addition to its excellent GnRH receptor antagonism, thereby accomplishing the invention. Since the compound of the invention shows excellent availability, in addition to its strong GnRH receptor antagonism, it can be expected that it exerts superior drug effect in the living body, and it is useful for the treatment of sex hormone dependent diseases such as prostate cancer, breast cancer, endometriosis, uterine leiomyoma, benign prostatic hypertrophy and the like.
    Type: Application
    Filed: March 18, 2010
    Publication date: July 8, 2010
    Applicant: ASTELLAS PHARMA INC
    Inventors: Masaaki Hirano, Eiji Kawaminami, Isao Kinoyama, Shunichiro Matsumoto, Kei Ohnuki, Kazuyoshi Obitsu, Toshiyuki Kusayama
  • Patent number: 7709519
    Abstract: Compounds useful as GnRH receptor antagonists are provided. The present inventors have further examined propane-1,3-dione derivatives and confirmed as a result that a propane-1,3-dione having 2-(1,3-dihydro-2H-benzimidazol-2-ylidene), or a compound which has benzene or thiophene ring substituted with a group derived from 1-hydroxymethyl, shows excellent availability, in addition to its excellent GnRH receptor antagonism, thereby accomplishing the invention. Since the compound of the invention shows excellent availability, in addition to its strong GnRH receptor antagonism, it can be expected that it exerts superior drug effect in the living body, and it is useful for the treatment of sex hormone dependent diseases such as prostate cancer, breast cancer, endometriosis, uterine leiomyoma, benign prostatic hypertrophy and the like.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: May 4, 2010
    Assignee: Astellas Pharma Inc.
    Inventors: Masaaki Hirano, Eiji Kawaminami, Isao Kinoyama, Shunichiro Matsumoto, Kei Ohnuki, Kazuyoshi Obitsu, Toshiyuki Kusayama
  • Patent number: 7569688
    Abstract: Provided is a pharmaceutical composition containing a propane-1,3-dione derivative as the active ingredient, particularly a GnRH receptor antagonist. Also, provided is a propane-1,3-dione derivative having a GnRH antagonistic effect.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: August 4, 2009
    Assignee: Astellas Pharma Inc.
    Inventors: Masaaki Hirano, Eiji Kawaminami, Akira Toyoshima, Hiroyuki Moritomo, Norio Seki, Ryutaro Wakayama, Minoru Okada, Toshiyuki Kusayama
  • Publication number: 20090181964
    Abstract: It is intended to provide a compound useful as a GnRH receptor antagonist. The inventors further investigated propane-1,3-dione derivatives. As a result, they confirmed that a compound having a benzene ring or a thiophene ring substituted with a group represented by —SO2—R3 in a propane-1,3-dione derivative having 2-(1,3-dihydro-2H-benzimidazol-2-ylidene) has an excellent GnRH receptor antagonistic effect and accomplished the present invention. Because the compound of the present invention has a potent GnRH receptor antagonistic effect, it is useful for the treatment of sex hormone-dependent diseases, particularly GnRH-related diseases. Further, because the compound of the present invention has an excellent metabolic stability in human and few drug interactions, therefore it has preferable characteristics as a pharmaceutical used for the above-mentioned diseases.
    Type: Application
    Filed: March 30, 2006
    Publication date: July 16, 2009
    Inventors: Masaaki Hirano, Isao Kinoyama, Shunichiro Matsumoto, Eiji Kawaminami, Kei Ohnuki, Hirofumi Yamamoto, Kazuhiko Osoda, Tatsuhisa Takahisa, Takashi Shin, Takanori Koike, Itsuro Shimada, Hiroyuki Hisamichi, Toshiyuki Kusayama
  • Publication number: 20090018177
    Abstract: Compounds useful as GnRH receptor antagonists are provided. The present inventors have further examined propane-1,3-dione derivatives and confirmed as a result that a propane-1,3-dione having 2-(1,3-dihydro-2H-benzimidazol-2-ylidene), or a compound which has benzene or thiophene ring substituted with a group derived from 1-hydroxymethyl, shows excellent availability, in addition to its excellent GnRH receptor antagonism, thereby accomplishing the invention. Since the compound of the invention shows excellent availability, in addition to its strong GnRH receptor antagonism, it can be expected that it exerts superior drug effect in the living body, and it is useful for the treatment of sex hormone dependent diseases such as prostate cancer, breast cancer, endometriosis, uterine leiomyoma, benign prostatic hypertrophy and the like.
    Type: Application
    Filed: June 2, 2005
    Publication date: January 15, 2009
    Inventors: Masaaki Hirano, Eiji Kawaminami, Isao Kinoyama, Shunichiro Matsumoto, Kei Ohnuki, Kazuyoshi Obitsu, Toshiyuki Kusayama
  • Publication number: 20050267110
    Abstract: Provided is a pharmaceutical composition containing a propane-1,3-dione derivative as the active ingredient, particularly a GnRH receptor antagonist. Also, provided is a propane-1,3-dione derivative having a GnRH antagonistic effect.
    Type: Application
    Filed: June 20, 2005
    Publication date: December 1, 2005
    Inventors: Masaaki Hirano, Eiji Kawaminami, Akira Toyoshima, Hiroyuki Moritomo, Norio Seki, Ryutaro Wakayama, Minoru Okada, Toshiyuki Kusayama
  • Patent number: 6960591
    Abstract: Provided is a pharmaceutical composition containing a propane-1,3-dione derivative as the active ingredient, particularly a GnRH receptor antagonist. Also, provided is a propane-1,3-dione derivative having a GnRH antagonistic effect.
    Type: Grant
    Filed: July 4, 2001
    Date of Patent: November 1, 2005
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Masaaki Hirano, Eiji Kawaminami, Akira Toyoshima, Hiroyuki Moritomo, Norio Seki, Ryutaro Wakayama, Minoru Okada, Toshiyuki Kusayama
  • Publication number: 20040010037
    Abstract: This application relates to a piperazino-substituted novel cyanophenyl derivative in which a substituted carbamoyl or substituted sulfamoyl group having an aryl, heterocyclic or the like group that may have a substituent group is bonded to one nitrogen atom on the piperazine ring. The compound of this application has an anti-androgen action and is useful in preventing or treating prostatic cancer, benign prostatic hyperplasia and the like diseases.
    Type: Application
    Filed: June 30, 2003
    Publication date: January 15, 2004
    Applicant: YAMANOUCHI PHARMACEUTICAL CO., LTD.
    Inventors: Nobuaki Taniguchi, Isao Kinoyama, Takashi Kamikubo, Akira Toyoshima, Kiyohiro Samizu, Eiji Kawaminami, Masakazu Imamura, Hiroyuki Moritomo, Akira Matsuhisa, Masaaki Hirano, Yoji Miyazaki, Eisuke Nozawa, Minoru Okada, Hiroshi Koutoku, Mitsuaki Ohta
  • Patent number: 6673799
    Abstract: This application relates to a piperazino-substituted novel cyanophenyl derivative in which a substituted carbamoyl or substituted sulfamoyl group having an aryl, heterocyclic or the like group that may have a substituent group is bonded to one nitrogen atom on the piperazine ring. The compound of this application has an anti-androgen action and is useful in preventing or treating prostatic cancer, benign prostatic hyperplasia and the like diseases.
    Type: Grant
    Filed: March 21, 2001
    Date of Patent: January 6, 2004
    Assignee: Yamanouchi Pharmaceutical Co. Ltd.
    Inventors: Nobuaki Taniguchi, Isao Kinoyama, Takashi Kamikubo, Akira Toyoshima, Kiyohiro Samizu, Eiji Kawaminami, Masakazu Imamura, Hiroyuki Moritomo, Akira Matsuhisa, Masaaki Hirano, Yoji Miyazaki, Eisuke Nozawa, Minoru Okada, Hiroshi Koutoku, Mitsuaki Ohta
  • Publication number: 20030191164
    Abstract: Provided is a pharmaceutical composition containing a propane-1,3-dione derivative as the active ingredient, particularly a GnRH receptor antagonist. Also, provided is a propane-1,3-dione derivative having a GnRH antagonistic effect.
    Type: Application
    Filed: December 19, 2002
    Publication date: October 9, 2003
    Inventors: Masaaki Hirano, Eiji Kawaminami, Akira Toyoshima, Hiroyuki Moritomo, Norio Seki, Ryutaro Wakayama, Minoru Okada, Toshiyuki Kusayama
  • Patent number: 5807880
    Abstract: An azole derivative represented by the following general formula (I) ##STR1## (symbols in the formula have the following meanings; R.sup.1 and R.sup.2 : the same or different from each other and each represents a hydrogen atom, a lower alkyl group or a phenyl group which may be substituted with a halogen atom,A, B and D: the same or different from one another and each represents a group represented by the formula ##STR2## or a nitrogen atom,X and Y: the same or different from each other and each represents a single bond, a methylene group, an oxygen atom,a group represented by a formula S(O).sub.n, or a group represented by the formula ##STR3## R.sup.3 and R.sup.4 : the same or different from each other and each represents a hydrogen atom or a lower alkyl group, andn: 0, 1 or 2),a salt thereof, a hydrate thereof or a solvate thereof.
    Type: Grant
    Filed: March 26, 1996
    Date of Patent: September 15, 1998
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Minoru Okada, Toru Yoden, Eiji Kawaminami, Yoshiaki Shimada, Tsukasa Ishihara, Masafumi Kudou
  • Patent number: 5674886
    Abstract: A triazolylated tertiary amine compound represented by general formula (I) or a salt thereof, having an aromatase inhibitory activity and being useful for preventing and treating breast cancer, mastopathy, endometriosis, prostatomergaly, etc., wherein A represents a single bond, lower alkylene or carbonyl; B represents lower alkyl, aryl, a 5- or 6-membered heterocyclic group, or a bicyclic fused heterocyclic group; D represents aryl, a 5- or 6-membered heterocyclic group, or a bicyclic fused heterocyclic group; and E represents 4H-1,2,4-triazolyl, 1H-1,2,4-triazolyl or 1H-1,2,3-triazolyl.
    Type: Grant
    Filed: February 24, 1994
    Date of Patent: October 7, 1997
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Minoru Okada, Eiji Kawaminami, Toru Yoden, Masafumi Kudou, Yasuo Isomura
  • Patent number: 5538976
    Abstract: A substituted tertiary amino compound represented by general formula (I) or a pharmaceutically acceptable salt thereof. They have an aromatase inhibiting activity and are useful as a prophylactic and/or therapeutic agent for breast cancer, mastopathy, endometriosis, prostatic-hypertrophy, and so forth.
    Type: Grant
    Filed: October 26, 1994
    Date of Patent: July 23, 1996
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Minoru Okada, Toru Yoden, Eiji Kawaminami, Yoshiaki Shimada, Masafumi Kudou, Yasuo Isomura