C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
167/48, 260/428.
C07F 13/00 (2006.01) A61K 51/04 (2006.01)
Patent
CA 1243329
ABSTRACT COMPLEXES OF TECHNETIUM-99m WITH PROPYLENE AMINE OXIMES A family of propylene amine oxime ligands has the formula 2 Image wherein preferably R1 is C1-C4 alkyl or phenyl and each of R, R2, R3 and R4 is H or C1-C4 alkyl. The technetium-99m complexes of these ligands are lipophilic neutral complexes useful as diagnostic radiopharmaceuticals and particularly for brain scanning. The ligands show stereoisomerism. The preparation and properties of the dl- and meso- stereoisomers, and of the d- and l-enantiomers, are described. The l-enantiomer and the dl-stereoisomer of the preferred compound (2, R=R1=R2=CH3, R3=R4=H) show good retention in the brain.
503659
Canning Lewis R.
Neirinckx Rudi D.
Nowotnik David P.
Piper Ian M.
Fetherstonhaugh & Co.
Ge Healthcare Limited
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