The preparation of two radioiodinated analogs of the epidermal growth facto
r receptor tyrosine kinase (EGFrTK) inhibitor PD153035 (4-(3'-bromoanilino)
-6,7-dimethoxyquinazoline) are reported herein. The two analogs, 4-(3'-[I-1
25]iodoanilino)-6,7-dimethoxyquinazoline and 4-(3'-[I-125]iodoanilino)-6,7-
diethoxyquinazoline, were synthesized via iododestannylation of the corresp
onding 4-(3'-trimethylstannylanilino)-6,7-dialkoxyquinazolines to form the
desired I-125 labeled products in good yield, high radiochemical purity (>9
9%) and high specific activity.