US3940441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N,N'-bisphenoxybenzyl-bridged-diamides
Assignee: STWB Inc
•
Filing: 1974-07-15
•
Granted: 1976-02-24
•
Expires: 1994-07-15
Abstract
Abstract Alkylenediamine derivatives substituted on each nitrogen atom by 4-(4'-nitrophenoxy)benzyl or 4-(4'-aminophenoxy)benzyl, optionally substituted additionally on each nitrogen by lower-alkyl, phenylcarbamyl or dihaloacetyl and optionally interrupted in alkylene by cycloalkylene, phenylene, alkylated-phenylene, pyridylene, furylene and thiazolylene. The compounds, which have antibacterial activity, are prepared stepwise by reacting an alkylenediamine with two molar equivalents of 4-(4'-nitrophenoxy)benzaldehyde and reducing the resulting bis(benzal)alkanediamines.
Inventors
- 👤 Alexander R. Surrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:13
CPC Classifications
C; C07; C07C; C07C323/00; C07C323/23; C07C323/24; C07C323/25; C07C275/00; C07C275/28
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
65 words
A compound of the formula ##SPC4## wherein Z is nitro or amino; R is phenylcarbamyl or dihaloacetyl; and Y is alkylene having from two to ten carbon atoms and having its connecting linkages on different carbon atoms or said alkylene interrupted by O, S, NH, N(lower-alkyl), cycloalkylene having from three to six ring carbon atoms, phenylene or phenylene having from one to four lower-alkyl substituents.
Claim 2
Dependent Claim
65 words
A compound of the formula ##SPC4## wherein Z is nitro or amino; R is phenylcarbamyl or dihaloacetyl; and Y is alkylene having from two to ten carbon atoms and having its connecting linkages on different carbon atoms or said alkylene interrupted by O, S, NH, N(lower-alkyl), cycloalkylene having from three to six ring carbon atoms, phenylene or phenylene having from one to four lower-alkyl substituents.
Claim 3
Dependent Claim
62 words
A compound according to claim 1, wherein Z is nitro or amino; R is phenylcarbamyl; and Y is alkylene having from two to ten carbon atoms and having its connecting linkages on different carbon atoms or said alkylene interrupted by O, S, NH, N(lower-alkyl), cycloalkylene having from three to six ring carbon atoms, phenylene, phenylene having from one to four lower-alkyl substituents.
Claim 4
Dependent Claim
5 words
N,N'-bis[4-(4'-nitrophenoxy)benzyl]-N,N'-bis-(phenylcarbamyl)-1,6-hexanediamine according to claim 2.
Claim 5
Dependent Claim
62 words
A compound according to claim 1, wherein Z is nitro or amino; R is dihaloacetyl; and Y is alkylene having from two to 10 carbon atoms and having its connecting linkages on different carbon atoms or said alkylene interrupted by O, S, NH, N(lower-alkyl), cycloalkylene having from three to six ring carbon atoms, phenylene, phenylene having from one to four lower-alkyl substituents.
Claim 6
Dependent Claim
5 words
N,N'-bis(dichloroacetyl)-N,N'-bis[4-(4'-nitrophenoxy)benzyl]-1,2-ethanediamine according to claim 4.
References Cited (Backward Citations)
US3553260A
Cited
US3798276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-23 | 1979-08-25 | 1980-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-23 | 1983-08-25 | 1984-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-23 | 1987-08-25 | 1988-02-24 | $7700.00 | Window Closed / Lapsed |