Patent JPH0512596A successfully refreshed from Google Patents.
US4085144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N,N'-Bridged-bis(2-alkyl-2-hydroxyethylamine) dioxides
Assignee: STWB Inc
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Filing: 1976-11-08
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Granted: 1978-04-18
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Expires: 1996-11-08
Abstract
Abstract N,N'-Bridged-bis[(O and/or N-substituted)-2-alkyl-2-hydroxyethylamines] of the formula <IMAGE> are prepared by condensing an epoxide of the formula <IMAGE> and a diamine of the formula R'NH-X-NHR'. The products and dicarbanilates, acid-addition salts, N,N'-dioxides and N,N'-diammonium quaternary salts derived therefrom have antibacterial activity in vitro and are useful as antibacterial agents.
Inventors
- 👤 Guy D. Diana
- 👤 Royal A. Cutler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:39
CPC Classifications
C; C07; C07C; C07C291/00; C07C291/02; C07C291/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
62 words
N,N'-(X)-bis[N-(R')-2-(R)-2-(ZO)-ethylamine] N,N'-dioxide wherein: R is alkyl of three to fifteen carbon atoms; R' is a tertiary alkyl of one to four carbon atoms; X is alkylene of two to twelve carbon atoms with bonds to the nitrogen atoms at different carbon atoms; the sum of the number of carbon atoms of R and X is at least nine; and Z is hydrogen.
Claim 2
Dependent Claim
62 words
N,N'-(X)-bis[N-(R')-2-(R)-2-(ZO)-ethylamine] N,N'-dioxide wherein: R is alkyl of three to fifteen carbon atoms; R' is a tertiary alkyl of one to four carbon atoms; X is alkylene of two to twelve carbon atoms with bonds to the nitrogen atoms at different carbon atoms; the sum of the number of carbon atoms of R and X is at least nine; and Z is hydrogen.
Claim 3
Dependent Claim
26 words
N,N'-(X)-bis[N-(R')-2-(R)-2-(ZO)-ethylamine] N,N'-dioxide wherein: R is alkyl of three to fifteen carbon atoms; R' is methyl; X is 1,6-hexylene; and Z is hydrogen according to claim 1.
Claim 4
Dependent Claim
6 words
N,N'-(1,6-hexylene)-bis[N-methyl-2-hydroxyundecylamine] N,N'-dioxide according to claim 2.
Claim 5
Dependent Claim
6 words
N,N'-(1,6-hexylene)-bis[N-methyl-2-hydroxyheptylamine] N,N'-dioxide according to claim 2.
Claim 6
Dependent Claim
6 words
N,N'-(1,6-hexylene)-bis[N-methyl-2-hydroxyoctylamine] N,N'-dioxide according to claim 2.
Claim 7
Dependent Claim
6 words
N,N'-(1,6-hexylene)-bis[N-methyl-2-hydroxynonylamine] N,N'-dioxide according to claim 2.
Claim 8
Dependent Claim
6 words
N,N'-(1,6-hexylene)-bis[N-methyl-2-hydroxydecylamine] N,N'-dioxide according to claim 2.
Claim 9
Dependent Claim
6 words
N,N'-(1,6-hexylene)-bis[N-methyl-2-hydroxydodecylamine] N,N'-dioxide according to claim 2.
Claim 10
Dependent Claim
6 words
N,N'-(1,6-hexylene)-bis[N-methyl-2-hydroxytetradecylamine] N,N'-dioxide according to claim 2.
References Cited (Backward Citations)
US2075359A
Cited
US2271378A
Cited
US2901461A
Cited
US3131220A
Cited
US3036076A
Cited
US3197509A
Cited
DE1220438B
Cited
FR1411269A
Cited
US3328467A
Cited
US3317469A
Cited
US3524883A
Cited
US3555095A
Cited
GB1377449A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-17 | 1981-10-17 | 1982-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-17 | 1985-10-17 | 1986-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-17 | 1989-10-17 | 1990-04-18 | $7700.00 | Window Closed / Lapsed |