Release reagent for vitamin d compounds
US-2017363649-A1 · Dec 21, 2017 · US
Methods for producing paricalcitol
US9212136B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9212136-B2 |
| Application number | US-200913055182-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 22, 2009 |
| Priority date | Jul 22, 2008 |
| Publication date | Dec 15, 2015 |
| Grant date | Dec 15, 2015 |
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Abstract
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The present invention is directed to novel processes for the preparation of paricalcitol to novel intermediates used in these processes, and to processes for preparation of the novel intermediates.
First claim
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The invention claimed is: 1. A process for preparing 19-nor-1α,3β,25-trihydroxy-9,10-secoergosta-5 (Z),7(Z),22(E)-triene (paricalcitol) of the formula wherein vitamin D2 is used as starting material and wherein a compound of the formula wherein R 1 r…
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- C07C401/00Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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Frequently asked questions
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- What does patent US9212136B2 cover?
- The present invention is directed to novel processes for the preparation of paricalcitol to novel intermediates used in these processes, and to processes for preparation of the novel intermediates.
- Who is the assignee on this patent?
- Bader Thomas, Stutz Alfred, Bichsel Hans-Ulrich, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification C07C401/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 15 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).