US4497803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inclusion compound of lankacidin-group antibiotic and use thereof
Assignee: Takeda Pharmaceutical Co Ltd
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Filing: 1983-04-06
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Granted: 1985-02-05
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Expires: 2003-04-06
Abstract
Abstract Inclusion compound of lankacidin-group antibiotic with cyclodextrin, having enhanced water-solubility and stability and a veterinary composition containing the same, which is useful for curing swine dysentery. The compound is prepared by adding lankacidin-group antibiotic to an aqueous cyclodextrin solution and stirring.
Inventors
- 👤 Setsuo Harada
- 👤 Junya Okada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:31
CPC Classifications
C; C07; C07D; C07D493/00; C07D493/02; C07D493/08; A; A61; A61K; A61K47/00; A61K47/50; A61K47/69; A61K47/6949; A61K47/6951; B; B82; B82Y; B82Y5/00; C08; C08B; C08B37/00; C08B37/0006; C08B37/0009; C08B37/0012; C08B37/0015
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
32 words
An inclusion compound of a lankacidin-group antibiotic selected from the group consisting of lankacidin A, lankacidin C, lankacidin C 8-ester, lankacidinol and a mixture of said lankacidin-group antibiotics with β- or γ-cyclodextrin.
Claim 2
Dependent Claim
32 words
An inclusion compound of a lankacidin-group antibiotic selected from the group consisting of lankacidin A, lankacidin C, lankacidin C 8-ester, lankacidinol and a mixture of said lankacidin-group antibiotics with β- or γ-cyclodextrin.
Claim 3
Dependent Claim
12 words
An inclusion compound according to claim 1 wherein the cyclodextrin is β-cyclodextrin.
Claim 4
Dependent Claim
14 words
An inclusion compound according to claim 2 wherein the lankacidin-group antibiotic is lankacidin A.
Claim 5
Dependent Claim
64 words
A veterninary composition for use in the treatment of swine dysentery which comprises, as an active ingredient, an amount effective for the treatment of swine dysentery of an inclusion compound of a lankacidin-group antibiotic selected from the group consisting of lankacidin A, lankacidin C, lankacidin C 8-ester, lankacidinol and a mixture of said lankacidin-group antibiotics with β- or γ-cyclodextrin and an acceptable carrier therefor.
Claim 6
Dependent Claim
64 words
A veterninary composition for use in the treatment of swine dysentery which comprises, as an active ingredient, an amount effective for the treatment of swine dysentery of an inclusion compound of a lankacidin-group antibiotic selected from the group consisting of lankacidin A, lankacidin C, lankacidin C 8-ester, lankacidinol and a mixture of said lankacidin-group antibiotics with β- or γ-cyclodextrin and an acceptable carrier therefor.
Claim 7
Dependent Claim
17 words
A composition according to claim 4, wherein the composition is in the form of an injectable solution.
Claim 8
Dependent Claim
31 words
A method for the treatment of swine dysentery which comprises administering to swine an amount effective for the treatment of swine dysentery of an inclusion compound as defined in claim 1.
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) | 1988-02-05 | 1988-08-06 | 1989-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-05 | 1992-08-06 | 1993-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-05 | 1996-08-06 | 1997-02-05 | $7700.00 | Window Closed / Lapsed |