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US3644469A Expired / Lapsed US ⏱️ 0.0 years remaining

1-(cyanophenoxy)-2-hydroxy-3-sec.-alkylamino-propanes

Assignee: C.H. Boehringer Sohn AG and Co KG
•
Filing: 1968-12-18
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Granted: 1972-02-22
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Expires: 1988-12-18
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Abstract

Abstract RACEMIC MIXTURES AND OPTICALLY ACTIVE ISOMERS OF 1PHENOXY - 2- HYDROXY -3- SEC, - ALKYLAMINO - PROPANES OF THE FORMULA R,R1,(R2-CH(-R3)-NH-CH2-CH(-OH)-CH2-O-)BENZENE WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF -(CH2)X-CN -(CH2)X-NH2 AND -(CH2)X+1-OH WHERE X IS 0,1, 2 OR 3, CARBOXYL, ALKOXYCARBONYL OR 1 TO 5 CARBON ATOMS OF THE ALKOXYL PART AND ALKENYLOXY AND ALKYNYLOXY OF 2 TO 5 CARBON ATOMS, R1 IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, HALOGEN, LOWER ALKYL AND LOWER ALKOXY OF 1 TO 5 CARBON ATOMS, LOWER ALKENYL OF 2 TO 5 CARBON ATOMS, CYANO AND NITRO AND R AND R1 TAKEN TOGETHER MAY BE METHYLENEDIOXY, R2 IS AN ALKYL OF 1 TO 5 CARBON ATOMS AND R3 IS ALKYL OR 2 TO 6 CARBON ATOMS AND THEIR NON-TOXIC, PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS HAVING B-ADRENOLYTIC AND BLOOD PRESSURE REDUCING PROPERTIES.

Inventors

  • 👤 Herbert Koppe
  • 👤 Werner Kummer
  • 👤 Helmut Stahle
  • 👤 Karl Zeile
  • 👤 Werner Traunecker

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 22:17
CPC Classifications
C; C07; C07D; C07D317/00; C07D317/08; C07D317/44; C07D317/46; C07D317/48; C07D317/62; C07D317/64; A; A61; A61K; A61K31/00; A61K31/04; A61K31/13; A61K31/135; A61K31/14; A61K31/185; A61K31/19; A61K31/195; A61K31/21; A61K31/215; A61K31/275

Claims Analysis

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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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