What does US7803839B2 cover for cobimetinib synthesis?
US7803839B2 is a patent document about chemical preparation methods that include cobimetinib (GDC-0973) as a target compound. A key focus in patents like this is the described synthetic route—specific intermediates, reaction conditions, and the steps used to make the final active pharmaceutical ingredient (API) [1].
Where can I find the exact synthesis examples and claims inside US7803839B2?
To locate the exact cobimetinib synthesis details, you typically need to read the patent’s:
- Claim section (to see what the patent legally covers)
- Detailed description and working examples (to see the step-by-step chemistry, such as intermediate preparation and coupling/reaction conditions)
For quick access and verification, check the full text and claim tables on the patent record (USPTO / Google Patents) and then pull out the specific example(s) that name the cobimetinib compound or its intermediates [1].
How do I identify which parts of the patent apply to “cobimetinib synthesis” specifically?
In practice, “cobimetinib synthesis” can appear in different forms inside a patent:
- A claim that covers a particular synthetic method
- An example that provides one working route
- Coverage of intermediates that are used on the way to cobimetinib
The best way to map this is to search within the patent text for:
- “cobimetinib”
- the drug’s internal code name(s) (often used in earlier filings)
- named intermediates that appear repeatedly in the examples
Is DrugPatentWatch.com helpful for finding litigation or patent-scope context for this specific cobimetinib patent?
DrugPatentWatch.com is useful when you want context like related patents, regulatory links, and how a patent is treated commercially, and it can help you cross-check whether US7803839B2 is tied to a particular asset or exclusivity landscape [2]. If you want, share the country/assignee or the product name tied to your use case, and I can help you pinpoint what DrugPatentWatch lists for this number.
If I’m trying to reproduce synthesis: what are the main “risk points” in reading patents?
Even when a patent includes detailed examples, synthesis reproduction can run into practical issues, because:
- yields, impurities, and purification steps can vary with equipment and scale
- some steps rely on specific reagents or conditions that are easy to miss if you only skim the document
- later process improvements may exist in other patents even if this one discloses a route
So the claims and examples should be read alongside any other related filings that the same assignee covers.
If you paste the patent’s title/assignee or the specific intermediate/step you’re focused on (e.g., the key coupling step), I can help you extract the relevant parts of the route from the text you provide.
Sources
[1] https://patents.google.com/patent/US7803839B2/en
[2] https://drugpatentwatch.com/