← Back to Patent Explorer
US3862232A Expired / Lapsed US ⏱️ 0.0 years remaining

1-(p-hydroxyphenyl)-2-phenyl-6-(2-diethylaminoethoxy)-3,4-dihydronaphthalene and the salts thereof

Assignee: Pharmacia and Upjohn Co
•
Filing: 1968-12-16
•
Granted: 1975-01-21
•
Expires: 1988-12-16
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The novel compounds of the invention can be represented by the following formula: WHEREIN M is selected from the class consisting of hydrogen and an alkali metal, R1 and R2 are each selected from the class consisting of lower-alkyl, lower-alkenyl, lower-alkoxy, loweralkenyloxy, hydroxy, halogen, trifluoromethyl, loweralkylmercapto, and at least one of R1 and R2 being WHEREIN A is an alkylene group containing from 2 to 6 carbon atoms, inclusive, R3 and R4 are selected from the class consisting of lower-alkyl and lower-alkyl linked together to form, with the attached nitrogen atom, a 5 to 7 ring atom saturated heterocyclic radical, x and y are integers from 0 to 4, inclusive, the sum of x and y being at least 1, and n is an integer from 1 to 2, inclusive; the pharmacologically acceptable acid addition salts of those compounds of the above formula wherein M is hydrogen and at least one of R1 and R2 represents AND THE QUATERNARY AMMONIUM SALTS OF THOSE COMPOUNDS OF THE ABOVE FORMULA WHEREIN M is hydrogen and at least one of R1 and R2 represents THE ANION OF SAID QUATERNARY AMMONIUM SALTS BEING THAT OF A PHARMACOLOGICALLY (PHARMACEUTICALLY) ACCEPTABLE ACID.

Inventors

  • 👤 Daniel Lednicer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 12:38
CPC Classifications
C; C07; C07C; C07C255/00; C07C37/00; C07C37/11; C07C37/20; C07C45/00; C07C45/45; C07C45/46; C07C45/61; C07C45/67; C07C45/673; C07C45/68; C07C45/70; C07C45/71; C07C45/72; C07C45/74; C07C49/00; C07C49/587; C07C49/657; C07C49/665; C07C49/67; C07C49/687; C07C49/697; C07C59/00; C07C59/40; C07C59/58; C07C59/64; C07C59/76; C07C59/90; C07D; C07D309/00; C07D309/02; C07D309/08; C07D309/10; C07D309/12; C07C2602/00; C07C2602/02; C07C2602/04; C07C2602/08; C07C2602/10

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

US2914561A Cited
US2971001A Cited
US3164607A Cited
US3422114A Cited
US3476767A Cited
US3472896A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-01-20 1978-07-22 1979-01-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-01-20 1982-07-22 1983-01-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-01-20 1986-07-22 1987-01-21 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag