Compositions and methods for treatment of edema
US-12144805-B2 · Nov 19, 2024 · US
Cyclosporin A form 2 and method of making same
US9352014B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9352014-B2 |
| Application number | US-201414309547-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 19, 2014 |
| Priority date | Nov 15, 2011 |
| Publication date | May 31, 2016 |
| Grant date | May 31, 2016 |
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Abstract
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Disclosed herein are methods of making cyclosporin A Form 2.
First claim
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What is claimed is: 1. A method for making cyclosporin A form 2, the method comprising the steps of: a) preparing a suspension of cyclosporin A in a solvent comprising an ingredient selected from the group consisting of acetonitrile, 1,4-dioxane, and ethanol; b) heating the suspension; c) adding cyclosporin A form 2 to the suspension; d) stirring the suspension; and e) isolating cyclosporin A form 2 from the suspension. 2. The method of claim 1 , wherein the step of heating the suspension comprises heating the suspension at a temperature of between about 40°C. and 70°C. 3. The method of claim 2 , wherein the step of heating the suspension comprises heating the suspension at a temperature of between about 60°C. and 65°C. 4. The method of claim 1 , wherein the step of stirring the suspension comprises stirring the suspension at a temperature of between about 20°C. and 70°C. 5. The method of claim 4 , wherein the step of stirring the suspension comprises stirring the suspension at a temperature of between about 60°C. and 65°C. 6. The method of claim 5 , wherein the step of stirring the suspension comprises stirring the suspension for between about 24 hours_and about 72 hours. 7. The method of claim 5 , wherein the step of stirring the suspension comprises stirring the suspension for between about 22 hours_and about 23 hours.
Assignees
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Classifications
Antiallergic agents (antiasthmatic agents A61P11/06; ophthalmic antiallergics A61P27/14) · CPC title
Ophthalmic agents · CPC title
Crystalline forms, e.g. polymorphs · CPC title
by crystallization · CPC title
- A61K38/13Primary
Cyclosporins · CPC title
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Frequently asked questions
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- What does patent US9352014B2 cover?
- Disclosed herein are methods of making cyclosporin A Form 2.
- Who is the assignee on this patent?
- Allergan Inc
- What technology area does this patent fall under?
- Primary CPC classification A61K38/13. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue May 31 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).