Cyclosporin analogs
US-9493511-B2 · Nov 15, 2016 · US
Cyclosporin a form 2 and method of making same
US10017541B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10017541-B2 |
| Application number | US-201615165997-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 26, 2016 |
| Priority date | Nov 15, 2011 |
| Publication date | Jul 10, 2018 |
| Grant date | Jul 10, 2018 |
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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 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 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 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 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 60° C. and 65° C. 6. The method of claim 5 , wherein the step of stirring the suspension comprises stirring the suspension for between 24 hours and 72 hours. 7. The method of claim 5 , wherein the step of stirring the suspension comprises stirring the suspension for between 22 hours and 23 hours.
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Frequently asked questions
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- What does patent US10017541B2 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 C07K7/645. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 10 2018 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).