GB2063249A — 4-Phenylphthalazine derivatives
Assigned to Mitsubishi Yuka Pharmaceutical Co Ltd · Expires 1981-06-03 · 45y expired
What this patent protects
4-phenylphthalazine derivatives of formula (I), and represented by pharmaceutically acceptable salts thereof have potent inhibitory activities against platelet aggregation <IMAGE> wherein X is NH or O; R<1>, R<2> and R<3> are each alkyl, alkoxy, halogen,…
USPTO Abstract
4-phenylphthalazine derivatives of formula (I), and represented by pharmaceutically acceptable salts thereof have potent inhibitory activities against platelet aggregation <IMAGE> wherein X is NH or O; R<1>, R<2> and R<3> are each alkyl, alkoxy, halogen, alkoxycarbonyl, carboxyl. alkylcarbonyl group, hydroxyl, trifluoromethyl, and R<1> can also be cyano, l, m and n are each 0, 1, 2 or 3 (provided that l = 1 to 3 and m = n = zero when X is 0, and the case where l = m = n = zero is excluded when X is NH).
Drugs covered by this patent
- Trulance (PLECANATIDE) · Salix
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.
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