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US3660577A Expired / Lapsed US ⏱️ 0.0 years remaining

N-trityl-imidazoles as antifungal agents

Assignee: Bayer AG
•
Filing: 1968-09-09
•
Granted: 1972-05-02
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Expires: 1988-09-09
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Abstract

Abstract N-TRITYL-IMIDAZOLES AND SALTS THEREOF OF THE FORMULA: 1-((((X)N-PHENYL),((X'')N-PHENYL),((X")N-PHENYL)-)C-),2-R, WHEREIN R, R1 AND R2 ARE HYDROGEN, LOWER ALKYL OR PHENYL, OR R1 AND R2 TOGETHER FORM AN ANELLATED BENZENE RING, X, X'' AND X" ARE ALKYL OF 1 TO 12 CARBON ATOMS OR AN ELECTRO-NEGATIVE MOIETY, AND N, N'' AND N" ARE AN INTEGER FROM 0 TO 2, OR PHARMACEUTICALLY ACCEPTABLE ACID SALTS THEREOF MAY BE PRODUCED BY REACTING A SILVER SALT OR ALKALI METAL SALT OF AN IMIDAZOLE OF THE FORMULA: 2-R,4-R1,5-R2-IMIDAZOLE WITH A TRITYL HALIDE OF THE FORMULA: (((X)N-PHENYL),((X'')N-PHENYL),((X")N-PHENYL)-)C-HAL 4-R1,5-R2-IMIDAZOLE WHEREIN THE SUBSTITUENTS ARE AS ABOVE DEFINED AND HAL IS HALOGEN. THESE COMPOUNDS ARE USEFUL AS ANTIMYCOTICS.

Inventors

  • 👤 Karl-Heinz Buchel
  • 👤 Erich Regel
  • 👤 Manfred Plompel

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 22:11
CPC Classifications
C; C07; C07D; C07D249/00; C07D249/02; C07D249/08; C07D231/00; C07D231/02; C07D231/10; C07D231/12; C07D233/00; C07D233/54; C07D233/56; C07D235/00; C07D235/02; C07D235/04; C07D235/06; C07D235/08; C07D235/18

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) 1975-05-02 1975-11-01 1976-05-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-05-02 1979-11-01 1980-05-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-05-02 1983-11-01 1984-05-02 $7700.00 Window Closed / Lapsed

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