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US5053514A Expired / Lapsed US ⏱️ 0.0 years remaining

Cardiotonics

Assignee: Otsuka Pharmaceutical Co Ltd
•
Filing: 1989-08-09
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Granted: 1991-10-01
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Expires: 2009-08-09
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Abstract

Abstract Method for prophylaxis and treatment of heart diseases using a carbostyril derivative of formula: ##STR1## wherein R 1 is H or CN, and R 2 and R 3 are each H, alkyl optionally substituted by OH, cyclocalkyl, alkenyl, phenyl, phenylalkyl having optionally substituents of alkoxyalkoxy, halogen, alkoxy, NO 2 , alkyl, CN, alkylthio or alkylsulfinyl on phenyl ring and having optionally OH-substituent on alkyl moiety, phenylsulfonyl having optionally alkoxy substituent on phenyl ring, phenylthioalkyl, phenylsulfinylalkyl having optionally substituents of halogen or alkoxy on phenyl ring, phenoxyalkyl having optionally substituents of halogen or alkoxy on phenyl ring, pyridylalkyl having optionally substituents of halogen or alkoxy on pyridine ring, thienylalkyl, benzoyalkyl, anilinothiocarbonyl, benzoyl, pyridyl, phenylalkenyl, or group of --A--NR 4 R 5 (R 4 and R 5 are each alkyl or phenyl having optionally substituents of halogen or alkoxy on phenyl ring, and A is alkylene which may be interrupted with O), and a salt thereof, and novel carbostyril derivatives, and pharmaceutical composition of prophylaxis and treatment of heart diseases containing said novel carbostyril derivative.

Inventors

  • 👤 Takafumi Fujioka
  • 👤 Shuji Teramoto
  • 👤 Michiaki Tominaga
  • 👤 Yoichi Yabuuchi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 04:54
CPC Classifications
C; C07; C07D; C07D215/00; C07D215/02; C07D215/16; C07D215/20; C07D215/22; C07D215/227; A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/435; A61K31/47; A61P; A61P9/00; A61P9/04; C07D215/48; C07D215/54; C07D401/00; C07D401/02; C07D401/12; C07D409/00; C07D409/02; C07D409/12

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 1 words
6-[3-(3-methoxy-benzylamino)-2-hydroxypropoxy]carbostyril.
Claim 2
Dependent Claim 1 words
6-[3-(3-methoxy-benzylamino)-2-hydroxypropoxy]carbostyril.
Claim 3
Dependent Claim 1 words
6-[3-(3,4-dimethoxy-benzylamino)-2-hydroxypropoxy]carbostyril.
Claim 4
Dependent Claim 1 words
6-[3-(3,4-dimethoxy-benzylamino)-2-hydroxypropoxy]carbostyril.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-09-30 1995-04-01 1995-10-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-09-30 1999-04-01 1999-10-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-09-30 2003-04-01 2003-10-01 $7700.00 Window Closed / Lapsed

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