Patents Assigned to Yamanouchi Pharmaceutical Co., Ltd.
  • Patent number: 5565479
    Abstract: Condensed thiazole derivatives useful as 5-HT.sub.3 receptor agonists are provided and can be represented by the following formula (I) or a pharmaceutically acceptable salt thereof, a process for the production thereof and a pharmaceutical composition thereof: ##STR1## wherein R, A, L.sub.1, L.sub.2, L, and R.sup.1 -R.sup.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: October 15, 1996
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Kiyoshi Iwaoka, Hiroyuki Koshio, Hiroyuki Ito, Keiji Miyata, Mitsuaki Ohta
  • Patent number: 5556621
    Abstract: The present invention relates to improved plasminogen activators (improved t-PA) which have a prolonged biological half life, an increased stability to heat and acids and can be expected to be effective as inhibiting inflammation around the site in which thrombus is formed.
    Type: Grant
    Filed: May 4, 1994
    Date of Patent: September 17, 1996
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Yasushi Kawauchi, Toshiyuki Takemoto, Makoto Takayama, Masami Yokota, Masao Kato, Kimio Katsuta, Hiroshi Gushima
  • Patent number: 5547961
    Abstract: A method is provided for the treatment of hypersensitive intestinal diseases (irritable bowel syndrome) comprising the administration of a tetrahydroimidazopyridine derivative of the formula: ##STR1## wherein either one of X and Y is nitrogen and the other one is a radical represented by the formula .dbd.C(R.sup.1)--; and R can be ##STR2## in which R.sup.1, R.sup.2 and R.sup.3 are same or different hydrogen atom or a lower alkyl group, and salts thereof.
    Type: Grant
    Filed: February 6, 1995
    Date of Patent: August 20, 1996
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Mitsuaki Ohta, Takeshi Suzuki, Jun-ya Ohmori, Keiji Miyata, Isao Yanagisawa
  • Patent number: 5541182
    Abstract: This invention relates to novel benzodiazepine derivatives represented by the following general formula (I) or pharmaceutically acceptable salts thereof, ##STR1## (wherein R.sup.1 is an aryl group, or an aromatic heterocyclic radical of 5-membered monocyclic, 6-membered monocyclic or 5- and 6-membered bicyclic structure, which may optionally be substituted; and R.sup.2 is an aryl group which may optionally be substituted), to medicinal compositions comprising the same, and to a process for producing the same. The compounds of formula (I) shown above exhibit antagonism for the CCK-B receptor and the action of depressing the gastric acid secretion caused by the stimulus of pentagastrin, and are therefore useful as a drug for the relief of diseases related to the CCK-B receptor and the gastrin receptor.
    Type: Grant
    Filed: February 16, 1995
    Date of Patent: July 30, 1996
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Masato Satoh, Yutaka Kondoh, Yoshinori Okamoto, Akito Nishida, Kazuo Honda, Masayuki Saito
  • 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
  • Patent number: 5532339
    Abstract: Fusion proteins comprising the extracellular domain of the human MACIF (Membrane Attack Complex Inhibition Factor) gene product and a heterologous phosphatidylinositol (PI) anchor domain are provided.
    Type: Grant
    Filed: August 17, 1994
    Date of Patent: July 2, 1996
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Motowo Tomita, Yuji Sugita, Toshiyuki Takemoto, Kiyoshi Furuichi, Makoto Takayama, Ko Yasukawa, Katsuhisa Ito, Noboru Yamaji, Shinya Yano
  • Patent number: 5521180
    Abstract: A morpholine derivative represented by formula (I) or a pharmaceutically acceptable salt thereof: ##STR1## wherein R.sup.1 and R.sup.3, which may be the same or different, each represent a hydrogen atom or a lower alkyl group; R.sup.2 represents a halogen atom; and the dotted line indicates an optional double bond. These compounds exhibit a selective 5-HT reuptake inhibitory activity and a selective 5-HT.sub.2 receptor antagonistic activity and useful as a therapeutic agent for depression, anxiety, etc. with reduced side effects.
    Type: Grant
    Filed: August 3, 1995
    Date of Patent: May 28, 1996
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Mitsuo Fujii, Takayuki Suzuki, Satoshi Hayashibe, Shin-ichi Tsukamoto, Shin-ichi Yatsugi, Tokio Yamaguchi
  • Patent number: 5508296
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: April 16, 1996
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Kunihiro Niigata, Takumi Takahashi, Takashi Yoneda, Osamu Noshiro, Reiko Koike, Akiyoshi Shimaya
  • Patent number: 5498635
    Abstract: This invention relates to a tri(lower alkoxy)benzene derivative of the general formula (I), or its salt, optical isomer or solvate, ##STR1## wherein: R.sup.1, R.sup.2 and R.sup.3 : same or different and each represents a lower alkyl group;A: a group of the formula ##STR2## and R.sup.4 and R.sup.5 : same or different and each represents a lower alkyl group, an aralkyl group or an aryl group, provided that R.sup.4 and R.sup.5 may, taken together with the adjacent nitrogen atom, form a pyrrolidinyl group, a piperidino group, a morpholino group, a thiomorpholino group, or a piperazinyl group optionally substituted by a lower alkyl group in 4-position;to pharmaceutical compositions containing the same, and to processes for their production. The compound of the invention is useful as value as a pulmonary-surfactant secretion promoting agent.
    Type: Grant
    Filed: September 28, 1994
    Date of Patent: March 12, 1996
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Hiromu Hara, Tatsuya Maruyama, Munetoshi Saito, Toshiyasu Mase
  • Patent number: 5496942
    Abstract: A process is provided for preparing a tetrahydrobenzimidazole derivative represented by Formula (Ib): ##STR1## wherein Het representa s heterocyclic group which may be substituted with 1 to 3 substituents selected from the group consisting of a lower alkyl group, a lower alkenyl group, a lower alkynyl group, a cycloalkyl-lower alkyl group, an aralkyl group, a lower alkoxycarbonyl group, and a halogen atom; and X.sup.2 represents a single bond connected to the carbon atom of the heterocyclic ring as represented by Het. The process comprises reacting a heterocyclic compound represented by Formula (IIIa):Het--X.sup.2 --H (IIIa)wherein Het and X.sup.2 are as defined above, with a carboxylic acid represented by Formula (II): ##STR2## or a reactive derivative thereof.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: March 5, 1996
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Mitsuaki Ohta, Tokuo Koide, Takeshi Suzuki, Akira Matsuhisa, Keiji Miyata, Junya Ohmori, Isao Yanagisawa
  • Patent number: 5480875
    Abstract: Crystal D or E of 1-hydroxy-2-(imidazo[1,2-a]pyridin-3-yl)ethane -1,1-bis(phosphonic acid) monohydrate having specified lattice spacing and relative intensity in the powder X-ray diffraction spectrum obtained by using Cu-K.alpha. radiation and a dehydration peak temperature of 135.degree. to 149.degree. C. or 160.degree. to 170.degree. C. according to TG-DSC thermogravimetric analysis; and to a solid pharmaceutical preparation containing the same. The crystals are useful for producing a stable solid pharmaceutical preparation of the above compound which has an excellent drug efficacy for diseases wherein increased bone resorption participates, such as osteoporosis.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: January 2, 1996
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Yasuo Isomura, Makoto Takeuchi, Mamoru Hamada, Yoshisaburo Kaneko, Noriya Yamamoto
  • Patent number: 5475114
    Abstract: This invention relates to a pyrazolotriazole derivative represented by the general formula: ##STR1## wherein each symbol means as follows; R.sup.1, R.sup.3 and R.sup.4 : one of them represents hydrogen, tetrazolylated biphenylmethyl or lower alkyl,R.sup.2 : hydrogen, tetrazolylated biphenylmethyl, cycloalkyl or lower alkyl, andR.sup.5 and R.sup.6 : these may be the same or different from each other, and each represents hydrogen, halogen, tetrazolylated biphenylmethyl, formyl, carboxyl, esterified carboxyl, cycloalkyl, lower alkoxy, lower alkoxycarbonyl, or lower alkyl which may be substituted with hydroxyl, formyl or carboxyl,provided that at least one of R.sup.1 to R.sup.6 is tetrazolylated biphenylmethyl, and the broken lines mean that the pyrazolotriazole ring forms three double bonds, or a pharmaceutically acceptable salt thereof, and to a process for the production thereof, wherein the above compound (I) is useful for treating various diseases caused by the physiological function of angiotensin II.
    Type: Grant
    Filed: March 1, 1994
    Date of Patent: December 12, 1995
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Toshio Okazaki, Akira Suga, Toshihiro Watanabe, Kazumi Kikuchi, Osamu Inagaki, Isao Yanagisawa
  • Patent number: 5473100
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: December 5, 1995
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Yasuo Isomura, Seijiro Akamatsu, Toru Yoden, Masafumi Kudou, Akira Suga
  • Patent number: 5466464
    Abstract: A solid preparation soluble in the buccal cavity, which is composed of a sugar comprising lactose and/or mannitol and 0.1-1.2 w/w%, based on the sugar, of agar and an active ingredient and has a density of 400 to 1,000 mg/ml and such a strength as to withstand the handling in the manufacture thereof. It has such a sufficient practical solubility in the buccal cavity that even the aged or children having difficulty in swallowing a solid preparation, such as a tablet, can take it. It has an exceedingly high strength as compared with conventional open matrix structures and hence can withstand satisfactorily carrying and PTP packaging.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: November 14, 1995
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Katsuhiro Masaki, Kazutoshi Ban
  • Patent number: 5463064
    Abstract: A dextro-rotatory optical isomer of diastereoisomer A of (.+-.)-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid 3-(1-benzylpyrrolidin-3-yl)ester 5-methyl ester is provided having the formula ##STR1## and wherein the melting point of the hydrochloride of the dextro-rotatory optical isomer is 223.degree. to 230.degree. C. (decomp.), or a pharmaceutically acceptable acid addition salt thereof.
    Type: Grant
    Filed: May 5, 1994
    Date of Patent: October 31, 1995
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Kazuharu Tamazawa, Tadao Kojima, Hideki Arima, Yukiyasu Murakami, Yasuo Isomura, Minoru Okada, Kiyoshi Takanobu, Toichi Takenaka
  • Patent number: 5453514
    Abstract: A Maillard reaction inhibitor containing, as an active ingredient, an amidinoheterocyclic derivative or its pharmaceutically acceptable salt, which is useful for the prevention and/or cure of various complications of diabetes and maturity-onset disorders. The amidinoheterocyclic derivatives are also useful as Maillard reaction inhibitors for cosmetics, external endermic medicines, foods, drinks, luxury grocery items and functional foods.
    Type: Grant
    Filed: December 23, 1993
    Date of Patent: September 26, 1995
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Kunihiro Niigata, Tatsuya Maruyama, Hisataka Shikama, Toshiyuki Takasu, Masako Umeda, Eiko Hirasaki, Satoshi Hayashibe, Takenori Kimura
  • Patent number: 5447958
    Abstract: Pharmaceutical compositions are provided for the treatment of disorders in a subject, such as hypertension, congestive heart failure, angina pectoris, lower urinary tract dysfunction and prostatic hypertrophy. The compositions when administered to a subject produce an .alpha.-adrenergic blocking action and contain as an active ingredient sulfamoyl-substituted phenethylamine derivatives, such as optically active 5-2-[ 2-(2-ethoxyphenoxy)ethylamino] -2-methylethyl-2-methoxybenzenesulfonamide 2-methoxybenzenesulfonamide, and a pharmaceutically acceptable carrier.
    Type: Grant
    Filed: September 28, 1994
    Date of Patent: September 5, 1995
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Kunihiro Niigata, Takashi Fujikura
  • Patent number: 5442110
    Type: Grant
    Filed: April 20, 1994
    Date of Patent: August 15, 1995
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Yasuo Isomura, Seijiro Akamatsu, Toru Yoden, Masafumi Kudou, Akira Suga
  • Patent number: 5424431
    Abstract: The present invention relates to thiazole derivative represented by the general formula (I): ##STR1## or a pharmaceutically acceptable salt thereof, which has a selective agonistic activity for 5-HT.sub.3 receptor, a pharmaceutical composition thereof, and a process for producing the same.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: June 13, 1995
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Mitsuaki Ohta, Isao Yanagisawa, Keiji Miyata
  • Patent number: 5420348
    Abstract: Urea derivatives of the general formula (I) ##STR1## and salts thereof, pharmaceutical compositions containing the same, and methods for producing the same are-disclosed.The urea derivatives of the general formula (I) and salts thereof are novel compounds having the acyl-CoA cholesterol acyltransferase (ACAT) inhibiting activity.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: May 30, 1995
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Noriki Ito, Koyo Matsuda, Kiyoshi Iwaoka, Yuichi Iizumi