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US3987042A Expired / Lapsed US ⏱️ 0.0 years remaining

Phenothiazine derivative

Assignee: Individual
•
Filing: 1975-10-10
•
Granted: 1976-10-19
•
Expires: 1995-10-10
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Abstract

Abstract Phenothiazine derivatives are described of the formula ##SPC1## In which X 1 and X 2 , which may be the same or different, are H, R, F, Cl, Br, OR, CN, --COR, CH 3 , --S--R, --SOR, --SO 2 R or --SO 2 N(CH 3 ) 2 , where R is an alkyl group having from 1 to 4 carbon atoms, and the quinuclidine ring is substituted by the group --(CH 2 ) x -- in the 2- or 3- position, x being 1 or 2 when said group is substituted in the 2-position and being 0 or 1 when said group is substituted in the 3-position (because of electronic hindrance), and their acid addition and quaternary ammonium salts, have valuable pharmacological properties. In particular, these compounds have anti-histaminic, anti-cholinergic, adrenolytic, neuro-sedative, tranquillizing and/or spasmolytic properties. These compounds are prepared by condensing an appropriate phenothiazine with a quinuclidine derivative of the formula ##SPC2## In which x has the above-stated meaning and Z is a halogen atom or a reactive ester group.

Inventors

  • 👤 Claude Gueremy
  • 👤 Robert Labey
  • 👤 Didier Wirth
  • 👤 Maurice Auclair

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 08:22
CPC Classifications
C; C07; C07D; C07D453/00; C07D453/02

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 1 words
10-(3-Quinuclidinyl-methyl)-phenothiazine.
Claim 2
Dependent Claim 1 words
10-(3-Quinuclidinyl-methyl)-phenothiazine.

References Cited (Backward Citations)

US2945855A Cited
US3140284A Cited
US3360526A Cited
US3370058A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-10-19 1980-04-19 1980-10-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-10-19 1984-04-19 1984-10-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-10-19 1988-04-19 1988-10-19 $7700.00 Window Closed / Lapsed

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