CA Patent

CA2517629C — Phthalazinone derivatives

Assigned to Kudos Pharmaceuticals Ltd · Expires 2011-07-12 · 15y expired

What this patent protects

Compounds of the formula (I): wherein A and B together represent an optionally substituted, fused aromatic ring; X can be NRX or CRXRY; if X NRX then n is 1 or 2 and if X = CRXRY then n is 1; RX is selected from the group consisting of H, optionally substituted C1-20 alkyl, C5-20…

USPTO Abstract

Compounds of the formula (I): wherein A and B together represent an optionally substituted, fused aromatic ring; X can be NRX or CRXRY; if X NRX then n is 1 or 2 and if X = CRXRY then n is 1; RX is selected from the group consisting of H, optionally substituted C1-20 alkyl, C5-20 aryl, C3-20 heterocyclyl, amido, thioamido, ester, acyl, and sulfonyl groups; RY is selected from H, hydroxy, amino; or RX and RY may together form a spiro-C3-7 cycloalkyl or heterocyclyl group; RC1 and RC2 are both hydrogen, or when X is CRX RY, RC1, RC2, RX and RY, together with the carbon atoms to which they are attached, may form an optionally substituted fused aromatic ring; and R1 is selected from H and halo.

Drugs covered by this patent

Patent Metadata

Patent number
CA2517629C
Jurisdiction
CA
Classification
—
Expires
2011-07-12
Drug substance claim
No
Drug product claim
No
Assignee
Kudos Pharmaceuticals Ltd
Source
FDA Orange Book + USPTO grounding via Google Patents

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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