Abstract
Biologically active novel phthalimide derivative, N-(5-(2-hydroxyphenyl)-4,5-dihydro-1H-pyrazol-3-yl)phthalimide (HPZPHT), was synthesized in excellent yield and characterized by IR, mass and 1H NMR spectroscopy. It was radiolabeled with iodine-131 by direct electrophilic substitution reaction and radiochemical yield was determined by using different chromatographic techniques (HPLRC, paper chromatography and paper electrophoresis). 131I-HPZPHT has high radiolabeling yield (98.00 ± 2.00 %), stability, solid tumor uptake and T/NT ratio (5.17 ± 0.03 at 30 min. post-injection) compared with many new tracers which have been developed in recent years. This study encourages the possible use of this tracer as a potential imaging and/or therapeutic agent for cancer.
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