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Azirine compounds

Assignee: Wyeth Holdings LLC
•
Filing: 1970-04-15
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Granted: 1973-11-13
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Expires: 1990-04-15
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Abstract

Abstract AZIRINE COMPOUNDS OF THE FORMULA: R1-CO-CH<(-C(-R)=N-) WHEREIN R IS ALKYL OF C1-C8, PHENYL, OR SUBSTITUTED PHENYL AND R1 IS ALKYL OF C2-C18, PHENYL OR SUBSTITUTED PHENYL, WHERE SAID SUBSTITUENTS ARE MEMBERS SELECTED FROM THE GROUP CONSISTING OF CYANO; HALOGEN; TRIFLUOROMETHYL; ACYLOXY OF THE FORMULA: R2-COO- AMIDO OF THE FORMULA: R3-CO-NH- AMINO OF THE FORMULA: R4R5N-; ALKOXY OF THE FORMULA: R6O-; ALKYLTHIO OF THE FORMULA; AND ALKYL OF C1-C18; WHERE R2 IS ALKYL OF C1-C8, PHENYL, NAPHTHYL OR HYDROGEN; R3 IS ALKYL OF C1-C8, PHENYL OR NAPHTHYL; R4 AND R5 ARE HYDROGEN OR ALKYL OF C2-C3 AND R6 IS ALKYL OF C1C18, ARE PREPARED BY THE PHOTOTRANSPOSITION OF ISOXAZOLES. THEY ARE USEFUL IN IMAGING. THEY ARE ALSO USEFUL IN INFORMATION STORAGE AND RETRIEVAL.

Inventors

  • 👤 B Singh
  • 👤 Ullman E Fisher

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 23:24
CPC Classifications
C; C07; C07D; C07D203/00; C07D203/04; C07D261/00; C07D261/02; C07D261/06; C07D261/08; C07D263/00; C07D263/02; C07D263/30; C07D263/32; G; G03; G03C; G03C1/00; G03C1/72; G03C1/73

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) 1976-11-12 1977-05-14 1977-11-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-11-12 1981-05-14 1981-11-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-11-12 1985-05-14 1985-11-13 $7700.00 Window Closed / Lapsed

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