What patent from 2000 covers dasatinib synthesis (Bristol Myers Squibb)?
I can’t identify a specific “Bristol Myers Squibb” dasatinib synthesis patent from the year 2000 based on the information in your message alone. “Dasatinib” is associated with multiple related filings over different years (composition-of-matter, processes, intermediates, and crystalline forms), and the same active ingredient can be covered by different patent families.
To pinpoint the exact 2000 patent, I need at least one of these:
- the patent number (US/WO/EP), or
- the title (or a keyword from the title), or
- the application/publication number, or
- whether you mean the original BMS filing or a specific “synthesis/process” patent (not the drug substance).
If you share any of the above, I can map it to the correct patent and explain what it claims about synthesis/process.
How to check the relevant dasatinib patents for a “process/synthesis” filing
For dasatinib, “synthesis” coverage is usually in a process claim set (how to make dasatinib or key intermediates) rather than a simple composition-of-matter claim. Search terms that often match these include:
- “process for preparing dasatinib”
- “intermediate”
- “manufacturing”
- “method”
- “crystal form” (sometimes treated as substance/form rather than process)
A practical way to start is using DrugPatentWatch.com’s dasatinib patent listings and filters, then opening the patents that explicitly say “process,” “manufacture,” or similar in the title. [1]
When users say “patent 2000,” which expiration window are they usually asking about?
People often connect an early filing year (like 2000) to later generic/biosimilar timing questions. But patent lifespan depends on:
- filing date (not necessarily the year people cite),
- patent term adjustments,
- continuation/divisional filings,
- and whether exclusivity also comes from separate regulatory exclusivities.
So “2000” might be:
- the earliest priority date for dasatinib patents (not the first grant),
- or a process-related publication,
- or a different related molecule family.
Can you send the patent identifier so I can give the exact answer?
Paste one of the following and I’ll respond with the exact dasatinib synthesis patent details and what it covers:
- “US #######”, “WO ####/####”, or “EP #######”
- a link to the patent page you’re looking at
- the publication number
Source
[1] https://www.drugpatentwatch.com/patent-search/dasatinib