US3719679A
Expired / Lapsed
US
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9-(1-piperazinyl)-9,10-dihydro-9,10-et hanoanthracenes and their salts
Assignee: FABRICATION DES ANTIBIOTQUES S
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Filing: 1971-08-20
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Granted: 1973-03-06
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Expires: 1991-08-20
Abstract
Abstract R : hydrogen atom, lower alkyl, lower hydroxyalkyl, lower alkoxycarbonyl or lower hydroxyalkoxyalkyl radical or -X-Ar radical (X : lower alkylene radical - Ar : phenyl radical eventually substituted by halogen atoms, lower alkyl or lower alkoxy radicals). They are very useful substances for human therapeutics, namely as antihistaminics and antianaphylactics. Processes for the preparation of compounds of formula 1. The compounds are new 9-(1-piperazinyl)-9,10-dihydro-9,10ethanoanthracenes and their acid addition and quaternary ammonium salts; they correspond to the formula:
Inventors
- 👤 J Boissier
- 👤 R Ratouis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:25
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/02; A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A compound selected from the group consisting of 9-(1-piperazinyl)-9,10-dihydro-9,10 ethanoanthracenes and their pharmaceutically acceptable acid addition salts and mono-lower alkyl, hydroxyalkyl and di-lower alkyl quaternary ammonium salts, said 9-(1-piperazinyl)-9,10-dihydro-9,10-ethanoanthracenes having the formula:
Claim 2
Dependent Claim
32 words
A compound selected from the group consisting of 9-(1-piperazinyl)-9,10-dihydro-9,10 ethanoanthracenes and their pharmaceutically acceptable acid addition salts and mono-lower alkyl, hydroxyalkyl and di-lower alkyl quaternary ammonium salts, said 9-(1-piperazinyl)-9,10-dihydro-9,10-ethanoanthracenes having the formula:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |