Isolation of dialkylene phenolic glycol ether
US-2024376034-A1 · Nov 14, 2024 · US
Precursor compounds and methods for making same
US8946483B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8946483-B2 |
| Application number | US-201214131442-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 20, 2012 |
| Priority date | Jul 21, 2011 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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The present invention relates to a method of obtaining radiopharmaceutical precursors, and in particular precursors to protected amino acid derivatives, which are used as precursors for production of radiolabelled amino acids for use in in vivo imaging procedures, such as positron emission tomography (PET).
First claim
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What is claimed is: 1. A method for substantially removing a 1,2-dihalogen impurity from a product mixture comprising: (a) reacting the product mixture with an alkoxide, thereby transforming the 1,2-dihalogen impurity into an alkene; and (b) removing the alkene. 2. The method of claim 1 , wherein the alkoxide is methoxide. 3. The method of claim 1 , wherein said methoxide is sodium methoxide. 4. The method of claim…
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Frequently asked questions
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- What does patent US8946483B2 cover?
- The present invention relates to a method of obtaining radiopharmaceutical precursors, and in particular precursors to protected amino acid derivatives, which are used as precursors for production of radiolabelled amino acids for use in in vivo imaging procedures, such as positron emission tomography (PET).
- Who is the assignee on this patent?
- Achhanath Radha, Balaji Srinath, Kadavilpparampu Mohamed Asfal Mohammed, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification C07C41/44. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 03 2015 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).