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US3764606A Expired / Lapsed US ⏱️ 0.0 years remaining

9,9-di-substituted -6,7-benzomorphans

Assignee: ACF Chemiefarma NV
•
Filing: 1970-05-27
•
Granted: 1973-10-09
•
Expires: 1990-05-27
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Abstract

Abstract 6,7-BENZOMORPHAN DERIVATIVES HAVING ANALGESIC AND MORPHINEANTAGONISTIC PROPERTIES ARE OF THE FORMULA IN WHICH THE SUBSTITUENTS R are either lower alkyl groups or groups which, together with the carbon atom to which they are bonded, form a cycloaliphatic ring, and the substituents R1, R2 and R3 may or may not be made and, if made, R1 represents either a hydrogen atom or an alkyl, haloalkyl, alkenyl, alkinyl, aralkyl, cycloalkenyl, cycloalkylalkyl, cycloalkenylalkyl or cycloalkylidine-alkyl group, R2 is an alkyl, aryl, heteroaryl or aralkyl group, and R3 is a hydrogen atom or an hydroxy, alkoxy, alkoxy-alkoxy or acyloxy group. Such 6,7-benzomorphans may be in the form of their optically active enantiomers and/or their therapeutically acceptable salts. There are also disclosed methods for producing such 6,7-benzomorphan derivatives, and intermediates useful in such production.

Inventors

  • 👤 A Akkerman
  • 👤 P Janssen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 04:59
CPC Classifications
C; C07; C07D; C07D221/00; C07D221/02; C07D221/20; C07D211/00; C07D211/02; C07D211/04; C07D211/06; C07D211/36; C07D211/40; C07D211/44; C07D211/46; C07D211/48; C07D211/52; C07D211/68; C07D211/72; C07D211/74; C07D211/78; C07D211/80; C07D211/84; C07D211/86; C07D221/22; C07D221/26

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 17 words
A compound according to claim 1, in which each of said substituents R is a methyl group.
Claim 2
Dependent Claim 24 words
A compound according to claim 2, in which R1 is selected from the class consisting of methyl, allyl, 3-methyl-2-butenyl, cyclopropylmethyl, cyclobutylmethyl and phenethyl groups.
Claim 3
Dependent Claim 24 words
A compound according to claim 1, in which R1 is selected from the class consisting of methyl, allyl, 3-methyl-2-butenyl, cyclopropylmethyl, cyclobutylmethyl and phenethyl groups.

References Cited (Backward Citations)

US3351626A Cited
US3250678A Cited
US3320265A Cited
US3345373A Cited
US3322778A Cited
GB1078286A Cited
GB1079489A Cited
US3513169A Cited
US3514463A Cited
US3553223A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-10-08 1977-04-09 1977-10-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-10-08 1981-04-09 1981-10-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-10-08 1985-04-09 1985-10-09 $7700.00 Window Closed / Lapsed

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