CA2629227C — Precursor compound of radioactive halogen-labeled organic compound
Assigned to Nihon Medi Physics Co Ltd · Expires 2014-02-25 · 12y expired
What this patent protects
[PROBLEMS] To provide a novel amino acid organic compound that can be used as a labeled precursor compound of [18F]FACBC and other radioactive halogen labeled amino acid compounds, and that ensures freedom from methanol residue in the produced radioactive halogen labeled amino ac…
USPTO Abstract
[PROBLEMS] To provide a novel amino acid organic compound that can be used as a labeled precursor compound of [18F]FACBC and other radioactive halogen labeled amino acid compounds, and that ensures freedom from methanol residue in the produced radioactive halogen labeled amino acid compound. [MEANS FOR SOLVING PROBLEMS] Compounds of the formula: (1) wherein n is 0 or an integer of 1 to 4; R1 is an ethyl substituent, 1-propyl substituent or isopropyl substituent; X is a halogen substituent or group of the formula -OR2 in which R2 is a linear or branched-chain C1-C10 haloalkylsulfonate substituent, C3-C12 trialkylstannyl substituent, fluorosulfonate substituent or aromatic sulfonate substituent; and R3 is a protective group.
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.
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