Patent US3718646A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3718646A Expired / Lapsed US ⏱️ 0.0 years remaining

N-lower alkenyl-2,3-dihydro-2-oxo-5-phenyl-1h-1,4-benzodiazepine-1-carboxamides

Assignee: Pharmacia and Upjohn Co
•
Filing: 1970-10-05
•
Granted: 1973-02-27
•
Expires: 1990-10-05
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract WHEREIN R2, R3, R4, R5, and R6 have the values of above, with an alkenyl, cycloalyl, or haloalkyl isocyanate. The products of formula II are useful as tranquilizers and sedatives. WHEREIN R1 is alkenyl of three to eight carbon atoms, inclusive, cycloalkyl of three to six carbon atoms, inclusive, and haloalkyl, in which the alkyl group is of two to six carbon atoms, inclusive and the halogen is fluorine, chlorine, bromine, or iodine; wherein R2, R3, R4, and R5 are selected from the group consisting of hydrogen, alkyl of one to three carbon atoms, inclusive, fluorine, chlorine, bromine, cyano and trifluoromethyl, and wherein R6 is hydrogen or alkyl of one to three carbon atoms, inclusive, and the pharmacologically acceptable acid addition salts thereof, are prepared by reacting a compound of the structure A 2,3-dihydro-2-oxo-5-phenyl-1H-1,4-benzodiazepin-1-carboxamide of the formula:

Inventors

  • 👤 R Moffett

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 21:14
CPC Classifications
C; C07; C07D; C07D243/00; C07D243/06; C07D243/10; C07D243/14; C07D243/16; C07D243/18; C07D243/24

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 2 words
N-Allyl-7-chloro-2,3-dihydro-2-oxo-5-phenyl-1H-1,4-benzodiazepine-1 -carboxamide.
Claim 2
Dependent Claim 2 words
7-Chloro-N-crotyl-2,3-dihydro-2-oxo-5-phenyl-1H-1,4-benzodiazepine-1 -carboxamide.
Claim 3
Dependent Claim 2 words
N-allyl-7-cyano-2,3-dihydro-2-oxo-5-phenyl-1H-1,4-benzodiazepine-1 -carboxamide.
Claim 4
Dependent Claim 2 words
7-Chloro-N-cyclopropyl-2,3-dihydro-2-oxo-5-phenyl-1H-1,4-benzodiazepine-1 -carboxamide.
Claim 5
Dependent Claim 2 words
7-Chloro-N-cyclohexyl-2,3-dihydro-2-oxo-5-phenyl-1H-1,4-benzodiazepine-1 -carboxamide.
Claim 6
Dependent Claim 2 words
7-Chloro-1-(2-chloroethylcarbamoyl)-1,3-dihydro-5-phenyl-2H-1,4 -benzodiazepin-2-one.

References Cited (Backward Citations)

US3236838A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-02-27 1976-08-28 1977-02-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-02-27 1980-08-28 1981-02-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-02-27 1984-08-28 1985-02-27 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag