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US3644366A Expired / Lapsed US ⏱️ 0.0 years remaining

1-amino-3 4-dihydroisoquinolines

Assignee: Rhone Poulenc SA
•
Filing: 1969-03-05
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Granted: 1972-02-22
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Expires: 1989-03-05
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Abstract

Abstract THE 3,4-DIHYDROISOQUINOLINE DERIVATIVES OF THE FORMULA: 1-(R1-N(-R2)-A-),6,7-DI(R-)-3,4-DIHYDROISOQUINOLINE WHEREIN THE SYMBOLS R REPRESENT HYDROGEN, HALOGEN OR METHOXY OR TOGETHER FORM A METHYLENEDIOXY GROUP, A REPRESENTS A SINGLE BONC OR A GROUPING -S-A1- LINKED BY THE SULPHUR ATOM TO THE ISOQUINOLINE NUCLEUS AND A1 REPRESENTS AN ALKYLENE GROUP OF 1 THROUGH 5 CARBON ATOMS, AND R1 AND R2 REPRESENTS HYDROGEN, ALKYL, HALOGENOALKYL, HYDROXYALKYL, CYANOALKYL, DIALKYLAMINOALKYL, 4-METHYL-1-PIPERAZINYLALKYL,ARALKYL, AMINO, THIOUREIDO, OR A C-LINKED NITROGEN-CONTAINING 5- OR 6-MEMBERED MONONUCLEAR HETEROCYCLYL GROUP, OR R1 AND R2 TOGETHER WITH THE NITROGEN ATOM TO WHICH THEY ARE ATTACHED COLLECTIVLEY REPRESENT A 5- OR 6-MEMBERED MONONUCLEAR HETEROCYCLIC GROUP, ARE USEFUL AS THERAPEUTICS, POSSESSING IN PARTICULAR ANT-TUSSIVE AND ANTI-FIBRILLATING PROPERTIES.

Inventors

  • 👤 Claude Jeanmart
  • 👤 Mayer Naoum Messer
  • 👤 Pierre Edouard Simon

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 22:44
CPC Classifications
C; C07; C07D; C07D317/00; C07D317/08; C07D317/44; C07D317/46; C07D317/48; C07D317/50; C07D317/58; C07C; C07C331/00; C07C331/16; C07C331/18; C07C331/22; C07C331/24; C07D317/52

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-02-21 1975-08-23 1976-02-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-02-21 1979-08-23 1980-02-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-02-21 1983-08-23 1984-02-22 $7700.00 Window Closed / Lapsed

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