US3679693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-pyridylalkyl-{62 -alkoxy-{62 -trifluoromethyl-phenalkylamines
Assignee: Smith Kline & French Laboratories Ltd
•
Filing: 1970-09-15
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Granted: 1972-07-25
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Expires: 1990-09-15
Abstract
Abstract N-Pyridylalkyl- Beta -alkoxy- Beta trifluoromethylphenalkylamines having anorectic activity are prepared by the condensation of an N-pyridylalkylamine with a Beta -alkoxytrifluoromethylphenakyl halide.
Inventors
- 👤 Stephen T Ross
- 👤 Charles L Zirkle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:44
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/36; C07D213/38
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
16 words
A compound according to claim 1 in which the CF3 group is in the meta position.
Claim 2
Dependent Claim
13 words
A compound according to claim 2 in which the pyridine ring is 3-substituted.
Claim 3
Dependent Claim
11 words
A compound according to claim 3 in which R is methyl.
Claim 4
Dependent Claim
11 words
A compound according to claim 4 in which A is methylene.
Claim 5
Dependent Claim
11 words
A compound according to claim 5 in which R1 is hydrogen.
Claim 6
Dependent Claim
18 words
A compound according to claim 6 in which R2 is hydrogen, being the compound Beta -methoxy- Beta -(3-trifluoromethylphenyl)-N-(3''-pyridylmethyl)-ethylamine.
Claim 7
Dependent Claim
18 words
A compound according to claim 6 in which R2 is methyl, being the compound Beta -methoxy-N-methyl-N-(3''-pyridylmethyl)- Beta -(3-trifluoromethylphenyl)-ethylamine.
References Cited (Backward Citations)
US3433796A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |