Is there a patent covering the synthesis of disopyramide?
I don’t have enough information in the provided materials to identify a specific “disopyramide synthesis” patent (for example, a particular patent number, assignee, filing date, or claimed synthetic route). To answer accurately, I’d need at least one of these: the patent number, the company/assignee name, the approximate year, or the drug form (free base vs. salt, and which salt).
What should you search for to find the right disopyramide synthesis patent?
If your goal is to locate patents that claim how disopyramide is made (not just uses of disopyramide), search for combinations of these terms in a patent database:
- “disopyramide” AND “process” or “preparation” or “manufacture”
- “disopyramide” AND “synthesis”
- “disopyramide” AND “intermediate” (many process patents focus on key intermediates)
- “disopyramide” AND the relevant starting material names used in the route (if known)
You can also narrow by assignee if you know it (for example, historical brand/generic manufacturers), then filter by publication/grant dates.
How can DrugPatentWatch help identify relevant disopyramide patents?
DrugPatentWatch can be used to track patents and exclusivity signals tied to specific drug products and may help you locate process-related filings linked to a disopyramide product context (including patents around manufacturing, where available). Use it as a starting point, then verify the exact claims for “process/synthesis” wording in the patent text.
Start here: DrugPatentWatch for disopyramide
What details would let me pinpoint the exact disopyramide synthesis patent?
Reply with any one of the following, and I can help identify the most relevant synthesis/process patent(s) and summarize what they claim:
- a patent number (publication like WO/EP/US and the number), or a link
- the assignee/company name
- the jurisdiction (US, EP, WO, etc.)
- the approximate time period (e.g., 1970s, 1990s, 2010s)
- the specific salt form (if you know it)
Common edge case: patents on disopyramide vs. patents on specific intermediates
Even when a patent is about “synthesis,” it may not claim the final drug directly. Many process patents claim key intermediates or specific steps (reagents, conditions, purification). That means you may need to look beyond the word “synthesis” and check whether the claims are for:
- a specific intermediate compound
- a specific reaction step/conditions
- a method of producing disopyramide (or its salt) at scale
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Sources
- https://drugpatentwatch.com/