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US3892756A Expired / Lapsed US ⏱️ 0.0 years remaining

Novel dibenzocycloheptenes

Assignee: Sanofi Aventis France
•
Filing: 1973-01-30
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Granted: 1975-07-01
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Expires: 1993-01-30
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Abstract

Abstract Racemates and optically active isomers of a compound selected from the group consisting of a compound of the formula WHEREIN R is selected from the group consisting of hydrogen, lower alkyl optionally substituted with a member of the group consisting of hydroxy and halogen, lower alkenyl, lower alkynyl, -(CH2)n - COCH3 where n is 0 or 1, wherein X is selected from the group consisting of lower alkyl and optionally substituted phenyl, aralkyl of seven to eight carbon atoms, acyl of an organic carboxylic acid of one to six carbon atoms optionally substituted with where m is an integer from 0 to 6 and X1 is selected from the group consisting of hydrogen and lower alkyl, where p is an integer from 1 to 6 and X1 is as before and wherein X2 is lower alkyl and R1 and R2 are individually selected from the group consisting of hydrogen, halogen, lower alkyl, lower alkoxy, trifluoromethyl and dilower alkylamino and the non-toxic, pharmaceutically acceptable acid addition and quaternary ammonium salts thereof which have a stimulating effect on the central nervous system while possessing at the same time anticonvulsant activity and their preparation.

Inventors

  • 👤 Lucien Nedelec
  • 👤 Daniel Frechet

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 19:48
CPC Classifications
C; C07; C07D; C07D451/00; C07D451/02; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6561

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim 5 words
A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim 20 words
A compound of claim 1 wherein R is selected from the group consisting of hydrogen, methyl, ethyl, n-propyl and hydroxyethyl.
Claim 4
Dependent Claim 22 words
A compound of claim 1 selected from the group consisting of 10,11-dihydro-5,10-imino-(5H)-dibenzo (a,d) cycloheptene and its non-toxic, pharmaceutically acceptable acid addition salts.
Claim 5
Dependent Claim 22 words
A compound of claim 1 selected from the group consisting of 12-methyl-10,11-dihydro-5,10-imino-(5H)-dibenzo (a,d) cycloheptene and its non-toxic, pharmaceutically acceptable acid addition salts.
Claim 6
Dependent Claim 22 words
A compound of claim 1 selected from the group consisting of 12-n-propyl-10,11-dihydro-5,10-imino-(5H)-dibenzo (a,d) cycloheptene and its non-toxic, pharmaceutically acceptable acid addition salts.
Claim 7
Dependent Claim 22 words
A compound of claim 1 selected from the group consisting of 12-ethyl-10,11-dihydro-5,10-imino-(5H)-dibenzo (a,d) cycloheptene and its non-toxic, pharmaceutically acceptable acid addition salts.
Claim 8
Dependent Claim 22 words
A compound of claim 1 selected from the group consisting of 12-hydroxyethyl-10,11-dihydro-5,10-imino-(5H)-dibenzo (a,d) cycloheptene and its non-toxic, pharmaceutically acceptable acid addition salts.

References Cited (Backward Citations)

US2524856A Cited
US3597433A Cited
US3717641A Cited
US3860652A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-06-30 1978-12-30 1979-07-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-06-30 1982-12-30 1983-07-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-06-30 1986-12-30 1987-07-01 $7700.00 Window Closed / Lapsed

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