作者:Koki Yamamoto、Shiho Okazaki、Hiroaki Ohno、Fuko Matsuda、Satoshi Ohkura、Kei-ichiro Maeda、Nobutaka Fujii、Shinya Oishi
DOI:10.1016/j.bmc.2016.05.054
日期:2016.8
The neurokinin B (NKB)-neurokinin-3 receptor (NK3R) signaling positively regulates the release of gonadotropin-releasing hormone (GnRH) from the hypothalamus. The NK3R-selective antagonists may suppress the reproductive functions of mammals. For development of novel NK3R antagonists with reduced environmental toxicity, a structure-activity relationship study of an NK3R antagonist, talnetant, was carried out. Among several talnetant derivatives with labile functional groups in the natural environment, 3-mercaptoquinoline 2f exhibited a comparable biological activity to that of the parent talnetant. Additionally, compound 2f was converted into the disulfide 3f or isothiazolone 8 by air-oxidation, both of which showed no binding affinity to NK3R. (C) 2016 Elsevier Ltd. All rights reserved.