作者:Kyo Chul Lee、Byung Seok Moon、Jae Hak Lee、Kyoo-Hyun Chung、John A Katzenellenbogen、Dae Yoon Chi
DOI:10.1016/s0968-0896(03)00362-6
日期:2003.8
Three fluoroalkylated derivatives (1-3) of the selective estrogen receptor modulator (SERM), raloxifene, have been synthesized. The key step in the synthesis is the C-C bond formation of benzo[b]thiophene and a substituted phenyl group (ring C) using a Stille reaction. The in vitro binding affinities of the substituted raloxifenes 1-3 are 45, 60, 89%, respectively, relative to the affinity of estradiol, which is higher than the affinity of raloxifene itself (25%). When labeled with the positron-emitting radio-nuclide, these compounds might be useful as PET imaging agents for estrogen receptor-positive breast tumors. (C) 2003 Elsevier Ltd. All rights reserved.