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US3574218A Expired / Lapsed US ⏱️ 0.0 years remaining

2-aryl- or aralkyl-substituted benzazole derivatives

Assignee: Egyesult Gyogyszer es Tapszergyar
•
Filing: 1969-08-11
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Granted: 1971-04-06
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Expires: 1989-08-11
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Abstract

Abstract NEW COMPOUNDS HAVING THE GENERAL FORMULA 1,2-(-X-C(-Y-(R2,PHENYLENE)-O-(CH(-R4))N-CO-R3)=N-), R1-BENZENE WHEREIN R1 IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND CHLORINE, R2 IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND LOWER ALKOXY, R3 IS SELECTED FROM THE GROUP CONSISTING OF PIPERIDINO AND A-METHYL-BENZYLAMINO RADICALS, R4 IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND METHYL RADICAL, X IS SELECTED FROM THE GROUP CONSISTING OF =O, =S, AND =NH, Y IS SELECTED FROM THE GROUP CONSISTING OF DIRECT BOND AND ALKYLENE HAVING FROM 1 TO 2 CARBON ATOMS, AND N IS SELECTED FROM THE GROUP CONSISTING OF 1 AND 2, AND THE POSITIONS OF R2 AND OF THE ETHER BOND IN THE PHENYL RADICAL ARE SELECTED FROM THE GROUP CONSISTING OF 2'', 3'', AND 4'', AND THEIR ACID ADDITION SALTS AND QUATERNARY AMMONIUM DERIVATIVES. THESE COMPOUNDS POSSESS VALUABLE PHARMACOLOGICAL PROPERTIES. THEY SHOW ANTI-ANGINOSE, CORONARY VASODILATOR AND PERIPHERAL CIRCULATION ENHANCING EFFECTS.

Inventors

  • 👤 Kalman Hideg
  • 👤 Laszlo Szekeres
  • 👤 Gyula Popp

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 23:19
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/60; C07D277/62; C07D277/64; C07D277/66; C07D235/00; C07D235/02; C07D235/04; C07D235/06; C07D235/12; C07D235/18

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) 1974-04-05 1974-10-05 1975-04-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-04-05 1978-10-05 1979-04-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-04-05 1982-10-05 1983-04-06 $7700.00 Window Closed / Lapsed

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