US4263438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3-[2,4-(Disubstituted)-phenyl]azacycloalkanones as analgesics
Assignee: Pfizer Inc
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Filing: 1979-01-02
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Granted: 1981-04-21
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Expires: 1999-01-02
Abstract
Abstract Azacycloalkanes, and derivatives thereof, including unsaturated analogs, each of which has at the 3-position a 2-hydroxy-4-substituted phenyl group wherein the 4-position substituent is alkyl which can have an oxygen atom as part of the chain, or aralkyl which can have an oxygen atom as part of the alkyl chain, their use for pharmacological and medicinal purposes, intermediates therefor and processes for their preparation.
Inventors
- 👤 Thomas H. Althuis
- 👤 Charles A. Harbert
- 👤 Michael R. Johnson
- 👤 Lawrence S. Melvin, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:29
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/68; C07D211/72; C07D211/74; C07D211/06; C07D211/08; C07D211/18; C07D211/20; C07D211/22; C07D211/36; C07D211/40; C07D211/42; C07D211/44; C07D211/46; C07D211/48; C07D211/70; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/553; C07F9/576; C07F9/59
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
222 words
A compound having the formula ##STR50## wherein R 1 is selected from the group consisting of hydrogen, benzyl and alkanoyl having from one to five carbon atoms; R 6 is selected from the group consisting of hydrogen, alkenyl having from two to six carbon atoms, alkynyl having from two to six carbon atoms and R 6 ' wherein R 6 ' is selected from the group consisting of alkyl having from one to six carbon atoms, phenylalkyl having from one to four carbon atoms in the alkyl group and cycloalkylmethyl having from three to six carbon atoms in the alkyl group; x is 0 or an integer from 1 to 3; Z is selected from the group consisting of (a) alkylene having from one to thirteen carbon atoms; (b) --(alk 1 ) m --O--(alk 2 ) n -- wherein each of (alk 1 ) and (alk 2 ) is alkylene having from one to thirteen carbon atoms, with the proviso that the summation of carbon atoms in (alk 1 ) plus (alk 2 ) is not greater than thirteen; each of m and n is 0 or 1; and W is selected from the group consisting of pyridyl and ##STR51## wherein W 1 is selected from the group consisting of hydrogen, fluoro and chloro; or a pharmaceutically acceptable acid addition salt thereof.
Claim 2
Dependent Claim
222 words
A compound having the formula ##STR50## wherein R 1 is selected from the group consisting of hydrogen, benzyl and alkanoyl having from one to five carbon atoms; R 6 is selected from the group consisting of hydrogen, alkenyl having from two to six carbon atoms, alkynyl having from two to six carbon atoms and R 6 ' wherein R 6 ' is selected from the group consisting of alkyl having from one to six carbon atoms, phenylalkyl having from one to four carbon atoms in the alkyl group and cycloalkylmethyl having from three to six carbon atoms in the alkyl group; x is 0 or an integer from 1 to 3; Z is selected from the group consisting of (a) alkylene having from one to thirteen carbon atoms; (b) --(alk 1 ) m --O--(alk 2 ) n -- wherein each of (alk 1 ) and (alk 2 ) is alkylene having from one to thirteen carbon atoms, with the proviso that the summation of carbon atoms in (alk 1 ) plus (alk 2 ) is not greater than thirteen; each of m and n is 0 or 1; and W is selected from the group consisting of pyridyl and ##STR51## wherein W 1 is selected from the group consisting of hydrogen, fluoro and chloro; or a pharmaceutically acceptable acid addition salt thereof.
Claim 3
Dependent Claim
16 words
A compound according to claim 1 wherein each of R 1 and R 6 is benzyl.
Claim 4
Dependent Claim
14 words
A compound according to claim 2 wherein Z is alkylene and W is phenyl.
Claim 5
Dependent Claim
29 words
A compound according to claim 2 wherein Z is (alk 1 ) m --O--(alk 2 ) n wherein m is 0 and n is 1 and W is ##STR52##
Claim 6
Dependent Claim
24 words
The compound according to claim 4 wherein Z is --OCH(CH 3 ) (CH 2 ) 3 , W is phenyl and x is 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-04-20 | 1984-10-20 | 1985-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-20 | 1988-10-20 | 1989-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-20 | 1992-10-20 | 1993-04-21 | $7700.00 | Window Closed / Lapsed |