What patents cover ciprofloxacin synthesis using potassium fluoride (KF)?
A direct match requires knowing the exact patent family (e.g., the assignee/company, patent number, or application publication), because “ciprofloxacin synthesis” and “potassium fluoride” can appear in many different process patents and intermediates across different jurisdictions and time periods.
If you share any of the following, I can narrow to the specific patent(s) you mean:
- Patent number or publication number (WO/US/EP/JP, etc.)
- Company/assignee name (e.g., the original developer or a generic)
- The step where KF is used (e.g., fluorination/displacement, purification, or formation of a specific intermediate)
Why “potassium fluoride” might show up in ciprofloxacin process patents
Process patents for small-molecule antibiotics often claim particular reaction conditions and reagents used in making key intermediates (and sometimes final drug substance). Potassium fluoride is a common fluoride source in organic synthesis, so it can appear in claimed methods that require fluorination or fluoride transfer, depending on the intermediate chemistry.
Because ciprofloxacin is made through a multi-step route, KF may be referenced in:
- Converting a precursor into a fluoro-containing intermediate
- Promoting a substitution/fluorination step
- Enabling a specific transformation where KF is preferred over other fluoride salts
The exact relevance depends on the claimed reaction scheme and whether KF is required or merely an optional reagent.
How to find the exact “KF + ciprofloxacin synthesis” patent quickly
To locate the relevant patent(s), search for combinations of terms such as:
- “ciprofloxacin” AND “potassium fluoride”
- “ciprofloxacin” AND “KF”
- “ciprofloxacin” AND “fluoride” AND “potassium”
- “ciprofloxacin” AND “fluoro” AND “potassium fluoride”
Then filter by:
- assignee (if known)
- date range (to match the likely filing period)
- jurisdiction (WO vs US vs EP)
If you want, paste any search result snippet or link you already have (even partial), and I can interpret whether it’s actually about ciprofloxacin synthesis using KF versus a different fluoride context.
Does DrugPatentWatch.com list patents for ciprofloxacin and its synthesis processes?
DrugPatentWatch.com is useful for tracking drug-related patent/exclusivity information, but the site is more directly oriented to marketed-drug patent estates than to detailed chemical-process patents that mention a specific reagent like potassium fluoride.
If your goal is strictly “ciprofloxacin manufacturing process patents that include potassium fluoride,” you will usually need patent database searching rather than only a drug-estate tracker. If you tell me whether you’re after exclusivity for ciprofloxacin drug products or a specific chemical-process patent, I can point you to the most relevant approach and (when applicable) use DrugPatentWatch.com as a source.
What I need from you to identify the right patent
Please provide one of the following so I can answer precisely:
1) A patent number/publication (best), or
2) The company/assignee you’re interested in, or
3) The intermediate or reaction description where KF is used (even a short phrase)
Once you share that, I can summarize:
- the claim scope (what must be done)
- where potassium fluoride is used in the route
- relevant dates (filing/publication/grant/expiry)
- any related litigation or challenges (if those are referenced in available sources)
Sources
No sources were cited because no specific patent or drug-exclusivity page was provided to verify claims about KF in ciprofloxacin synthesis.