Trospium chloride synthesis patent?

I can help, but there isn’t a single “the trospium chloride synthesis patent.” Trospium chloride (a quaternary ammonium antimuscarinic used for overactive bladder) has been the subject of multiple patent documents from different companies over the years, covering various synthetic routes and manufacturing processes. If you’re after a specific patent number or the most relevant family in a given jurisdiction, I can help track that down.

How I can help next:
- Tell me which jurisdiction you care about (US, EP/EU, WO, others) and whether you want the earliest patent, the most recent, or the main process for making the chloride salt.
- If you can share a link or a patent number you already found, I can summarize the claims and give a concise outline of the synthesis steps.
- Otherwise, I can run a targeted search and return a list of patent families with brief summaries and links.

Starting points you can use right away (patent databases):
- Google Patents: search terms like “trospium chloride synthesis,” “trospium chloride preparation,” “trospium chloride process for manufacture.”
- Espacenet: search “trospium chloride” and look at the families; check US/EP/WO members.
- USPTO/EP patent databases: same keywords, then review the claims to see the exact synthetic route and reagents used.

If you want, I can perform a search and provide a curated list of patent numbers, assignees, publication dates, and a quick 1–2 sentence summary of each synthesis approach. Just confirm you’d like me to search and, if possible, specify the jurisdictions you need.