US3705907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4-(2-hydroxy)-3-aminopropoxy)-indole derivatives
Assignee: Sandoz AG
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Filing: 1970-06-15
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Granted: 1972-12-12
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Expires: 1990-06-15
Abstract
Abstract THE INVENTION CONCERNS NOVEL COMPOUNDS OF FORMULA: 2-R2,4-(R1-NH-CH2-CH(-OH)-CH2-O-)INDOLE IN WHICH R1 IS LOWER ALKYL, CYCLOALKYL HAVING 3 TO 4 CARBON ATOMS, PHENYLALKYL OF 8 TO 10 CARBON ATOMS OR 1-ADAMANTYL, AND R2 IS HYDROXYMETHYL OR COOR5, WHERE R5 IS A HYDROGEN ATOM OR LOWER ALKYL RADICAL, WHICH ARE USEFUL AS B-ADRENERGIC BLOCKING AGENTS. PROCESSES FOR THE PRODUCTION OF THE COMPOUNDS OF THE INVENTION AND INTERMEDIATES FOR THE USE THEREIN ARE DESCRIBED.
Inventors
- 👤 Franz Troxler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:15
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/10; C07D209/12; C07D209/30; C07D209/42
Claims Analysis
Total Claims: 0
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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) | 1975-12-12 | 1976-06-12 | 1976-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-12 | 1980-06-12 | 1980-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-12 | 1984-06-12 | 1984-12-12 | $7700.00 | Window Closed / Lapsed |