US3878192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sweet and palatable water soluble derivatives of erythromycin
Assignee: Blasina Lab Chim Farm
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Filing: 1972-06-05
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Granted: 1975-04-15
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Expires: 1992-06-05
Abstract
Abstract Erythromycin and esters thereof are made palatable and water soluble by forming derivatives thereof with glycyrrhizic acid. Said derivatives are also salified with at least one base to improve the water solubility thereof.
Inventors
- 👤 Pietro Blasina
- 👤 Egidio Molinari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:48
CPC Classifications
C; C07; C07H; C07H17/00; C07H17/04; C07H17/08; C07H15/00; C07H15/20; C07H15/24; C07H15/256
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
32 words
A WATER SOLUBLE DERIVATIVE OF AN ERYTHROMYCI ANTIBIOTIC SELECTED FROM THE GROUP CONSISTING OF ERYTHROMYCIN AND ESTERS THEREOF WITH A LOWER ALKYL CARBOXYLIC ACID, ERYTHROMYCIN ETHYLCARBONATE, ERYTHROMYCIN ETHYL SUCCINATE AND GLYCYRRHIZIC ACID.
Claim 2
Dependent Claim
32 words
A WATER SOLUBLE DERIVATIVE OF AN ERYTHROMYCI ANTIBIOTIC SELECTED FROM THE GROUP CONSISTING OF ERYTHROMYCIN AND ESTERS THEREOF WITH A LOWER ALKYL CARBOXYLIC ACID, ERYTHROMYCIN ETHYLCARBONATE, ERYTHROMYCIN ETHYL SUCCINATE AND GLYCYRRHIZIC ACID.
Claim 3
Dependent Claim
12 words
A water soluble derivative of erythromycin and glycyrrhizic acid having the formula:
Claim 4
Dependent Claim
12 words
A water soluble derivative of erythromycin and glycyrrhizic acid having the formula:
Claim 5
Dependent Claim
13 words
A water soluble derivative of glycyrrhizic acid and erythromycin esters having the formula:
Claim 6
Dependent Claim
13 words
A water soluble derivative of glycyrrhizic acid and erythromycin esters having the formula:
Claim 7
Dependent Claim
4 words
Erythromycin glycyrrhizic acid salts.
Claim 8
Dependent Claim
4 words
Erythromycin glycyrrhizic acid salts.
Claim 9
Dependent Claim
5 words
Erythromycin propionate glycyrrhizic acid salts.
Claim 10
Dependent Claim
5 words
Erythromycin propionate glycyrrhizic acid salts.
Claim 11
Dependent Claim
5 words
Erythromycin ethylcarbonate glycyrrhizic acid salts.
Claim 12
Dependent Claim
5 words
Erythromycin ethylcarbonate glycyrrhizic acid salts.
Claim 13
Dependent Claim
5 words
Erythromycin ethylsuccinate glycyrrhizic acid salts.
Claim 14
Dependent Claim
5 words
Erythromycin ethylsuccinate glycyrrhizic acid salts.
Claim 15
Dependent Claim
31 words
A derivative as claimed in claim 1 which is a salt of at least one inorganic base selected from the group consisting of alkali metal hydroxides, carbonates, bicarbonates and ammonium hydroxide.
Claim 16
Dependent Claim
37 words
A derivative as claimed in claim 1 which is a salt of at least one organic base selected from the group consisting of lower alkanolamine, and tertiary amines selected from the group consisting of lidocaine and procaine.
Claim 17
Dependent Claim
13 words
A derivative as claimed in claim 9 wherein said organic base is lidocaine.
Claim 18
Dependent Claim
26 words
A derivative as claimed in claim 9 wherein said organic base is constituted by lidocaine and at least one of the other of said organic bases.
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) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |