← Back to Patent Explorer
US4048223A Expired / Lapsed US ⏱️ 0.0 years remaining

3-Dimethylsulfamoyl-5-[amino(alkyl or alkylidene)]-5H-dibenzo [a,d]cycloheptenes

Assignee: Merck and Co Inc
•
Filing: 1976-10-06
•
Granted: 1977-09-13
•
Expires: 1996-10-06
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract This invention relates to new derivatives of dibenzocycloheptenes and to processes for making them. More particularly, the invention includes 5H-dibenzo[a,d]-cycloheptenes and 10,11-dihydro-5H-dibenzo[a,d]cycloheptenes which are substituted at their 5-carbon atom with an aminopropyl or an aminopropylidene radical. The amino entity may be either primary or secondary and if secondary, the substituent may be either a lower alkyl or alkenyl radical having up to 6 carbon atoms, cycloalkyl having up to 8 carbon atoms or an aralkyl radical. The dibenzocycloheptene nucleus may be further substituted. The invention also includes the intermediates used for obtaining these products. Also included are derivatives such as acyl derivatives which yield the active compound under physiological conditions.

Inventors

  • 👤 Edward L. Engelhardt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 18:12
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/44; C07D209/48; C07F; C07F3/00; C07F3/02; C07C; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/30; C07C2603/32

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 26 words
A compound selected from the group consisting of: ##STR10## and acid addition salts thereof wherein R is selected from the group consisting of hydrogen and methyl.
Claim 2
Dependent Claim 26 words
A compound selected from the group consisting of: ##STR10## and acid addition salts thereof wherein R is selected from the group consisting of hydrogen and methyl.
Claim 3
Dependent Claim 1 words
3-Dimethylsulfamoyl-5-(3-methylaminopropyl)-5H-dibenzo[a,d]cycloheptene.
Claim 4
Dependent Claim 1 words
3-Dimethylsulfamoyl-5-(3-methylaminopropyl)-5H-dibenzo[a,d]cycloheptene.

References Cited (Backward Citations)

US3309404A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-09-12 1981-03-14 1981-09-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-09-12 1985-03-14 1985-09-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-09-12 1989-03-14 1989-09-13 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag