COMPOUND EXCELLENT IN SELECTIVE ACCUMULATION TO UNSTABLE PLAQUE

摘要

PROBLEM TO BE SOLVED: To provide a compound excellent in selective accumulation to an unstable plaque.;SOLUTION: There is disclosed a compound expressed by formula (1) or a salt thereof. In the formula, A₁ is oxygen or an NH group; R¹ and R² are hydrogen or a radioactive halogen substituent, provided that only either of R¹ and R² is the radioactive halogen substituent; R³ is hydrogen or a methoxy group.;COPYRIGHT: (C)2014,JPO&INPIT