US3947520A
Expired / Lapsed
US
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Compounds and process for preparing the same
Assignee: Pharmacia and Upjohn Co
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Filing: 1974-12-05
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Granted: 1976-03-30
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Expires: 1994-12-05
Abstract
Abstract Cis and trans isomers of 1,2-diphenyl-1,2,3,4-tetrahydronaphthalenes, novel processes for the preparation thereof, and novel intermediates are disclosed herein. The novel 1,2-diphenyl-1,2,3,4-tetrahydronaphthalenes have utility as antifertility estrogenic, anti-estrogenic, anti-spermatogenic, cholesterol lowering and lipid normalizing agents.
Inventors
- 👤 Daniel Lednicer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:53
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/54; C07F9/5456; C07C; C07C45/00; C07C45/61; C07C45/62; C07C45/67; C07C45/673; C07C45/68; C07C45/70; C07C45/71
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
68 words
A compound having the formula: ##SPC9## wherein R represents alkoxy or cycloalkoxy; R 1 is selected from the group consisting of hydrogen, lower alkyl and halogen; and Ra is selected from the class consisting of hydrogen, halogen, alkyl, hydroxy and alkoxy, wherein the alkyl and alkoxy radicals each contain from 1 to 4 carbon atoms, inclusive, and the cycloalkoxy radical contains from 3 to 6 carbon atoms, inclusive.
Claim 2
Dependent Claim
68 words
A compound having the formula: ##SPC9## wherein R represents alkoxy or cycloalkoxy; R 1 is selected from the group consisting of hydrogen, lower alkyl and halogen; and Ra is selected from the class consisting of hydrogen, halogen, alkyl, hydroxy and alkoxy, wherein the alkyl and alkoxy radicals each contain from 1 to 4 carbon atoms, inclusive, and the cycloalkoxy radical contains from 3 to 6 carbon atoms, inclusive.
Claim 3
Dependent Claim
17 words
A compound of claim 1 wherein R is m-methoxy, R 1 is hydrogen and Ra is p-methoxy.
Claim 4
Dependent Claim
17 words
A compound of claim 1 wherein R is m-methoxy, R 1 is hydrogen and Ra is p-hydroxy.
References Cited (Backward Citations)
US3415837A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-30 | 1979-09-29 | 1980-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-30 | 1983-09-29 | 1984-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-30 | 1987-09-29 | 1988-03-30 | $7700.00 | Window Closed / Lapsed |