AU2013203119B2 — Peripheral opioid receptor antagonists and uses thereof
Assigned to Wyeth LLC · Expires 2015-12-03 · 10y expired
What this patent protects
The present invention provides a compound of formula I wherein X", R1, and R2 are as defined herein, and compositions thereof. The compounds include and are based on an impurity of methylnaltrexone, a peripheral opioid antagonist.
USPTO Abstract
The present invention provides a compound of formula I wherein X", R1, and R2 are as defined herein, and compositions thereof. The compounds include and are based on an impurity of methylnaltrexone, a peripheral opioid antagonist.
Drugs covered by this patent
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
Track this patent
Get a daily-checked alert when vulnerability score, expiry, classification, or assignee changes. Email, Slack, or Teams delivery. Pro: 50 watches, Free: 3.