Patent US4066753A successfully refreshed from Google Patents.
US4066753A
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Neomycin and paromomycin derivatives
Assignee: University of Montreal
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Filing: 1976-05-27
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Granted: 1978-01-03
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Expires: 1996-05-27
Abstract
Abstract The invention relates to novel neomycin and paromomycin derivatives having antibiotic activity. The derivatives have the formula: ##STR1## wherein R' is --NH 2 or --OH, either R 2 or R 3 is --CH 2 NH 2 and the other is hydrogen, and in addition non-toxic pharmaceutically acid addition salts of these compounds can be used.
Inventors
- 👤 Stephen Hanessian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:22
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/20; C07H15/22; C07H15/222; C07H15/226; C07H15/228; C07H15/232; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/848; Y10S435/849; Y10S435/874; Y10S435/875
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
42 words
A compound having the formula ##STR6## wherein R 1 is selected from --NH 2 and --OH, one of R 2 and R 3 is --CH 2 NH 2 and the other is hydrogen; or a non-toxic pharmaceutically acceptable acid addition salt thereof.
Claim 2
Dependent Claim
42 words
A compound having the formula ##STR6## wherein R 1 is selected from --NH 2 and --OH, one of R 2 and R 3 is --CH 2 NH 2 and the other is hydrogen; or a non-toxic pharmaceutically acceptable acid addition salt thereof.
Claim 3
Dependent Claim
37 words
A compound according to claim 1 wherein said salt is selected from the group consisting of the citric acid, ascorbic acid, acetic acid, hydrochloric acid, sulfuric acid, maleic acid, nitric acid, phosphoric acid and hydrobromic acid salts.
Claim 4
Dependent Claim
35 words
A compound according to claim 1 wherein R 1 is --NH 2 , R 2 is H and R 3 is --CH 2 NH 2 ; or a non-toxic pharmaceutically acceptable acid addition salt thereof.
Claim 5
Dependent Claim
37 words
A compound according to claim 3 wherein said salt is selected from the group consisting of the citric acid, ascorbic acid, acetic acid, hydrochloric acid, sulfuric acid, maleic acid, nitric acid, phosphoric acid and hydrobromic acid salts.
Claim 6
Dependent Claim
33 words
A compound according to claim 1 wherein R 1 is --OH, R 2 is H and R 3 is --CH 2 NH 2 ; or a non-toxic pharmaceutically acceptable acid addition salt thereof.
Claim 7
Dependent Claim
37 words
A compound according to claim 5 wherein said salt is selected from the group consisting of the citric acid, ascorbic acid, acetic acid, hydrochloric acid, sulfuric acid, maleic acid, nitric acid, phosphoric acid and hydrobromic acid salts.
Claim 8
Dependent Claim
23 words
An antibiotic composition comprising as an active ingredient a compound according to claim 1 together with a pharmaceutically acceptable solvent, diluent or carrier.
Claim 9
Dependent Claim
44 words
A composition according to claim 7 wherein the active ingredient is in the form of a salt selected from the group consisting of the citric acid, ascorbic acid, acetic acid, hydrochloric acid, sulfuric acid, maleic acid, nitric acid, phosphoric acid and hydrobromic acid salts.
Claim 10
Dependent Claim
30 words
A composition according to claim 7 wherein, in the active ingredient, R 1 is --NH 2 , R 2 is H and R 3 is --CH 2 NH 2 .
Claim 11
Dependent Claim
28 words
A composition according to claim 7 wherein, in the active ingredient, R 1 is --OH, R 2 is H and R 3 is --CH 2 NH 2 .
Claim 12
Dependent Claim
32 words
A method of treating amoebic dysentery in human beings and in animals, which method comprises administering an effective amount of a compound according to claim 1 to the human being or animal.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-02 | 1981-07-04 | 1982-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-02 | 1985-07-04 | 1986-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-02 | 1989-07-04 | 1990-01-03 | $7700.00 | Window Closed / Lapsed |