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Updated: Oct 3, 2026

Functionalized Spirocyclic Heterocycle Synthesis and Cytotoxicity Assay
Published on: February 9, 2021
Synthesis and biological evaluation of novel thio-substituted chromanes as high-affinity partial agonists for the
Lise B Christiansen1, Martin Wenckens, Paul S Bury
1Health Care Discovery & Preclinical Development, Novo Nordisk A/S, Novo Nordisk Park, DK-2760, Måløv, Denmark. libc@novonordisk.com
Abstract:
Synthesis of (+/-)-cis-7-hydroxy-3-phenyl-4-(4-(2-piperidinoethanethio)phenyl)chromane (13) and (+/-)-cis-7-hydroxy-3-phenyl-4-(4-(2-pyrrolidinoethanethio)phenyl)chromane (15) is presented. These compounds are representatives of a novel class of compounds with high in vitro binding affinity for the estrogen receptor (IC(50)=7-10 nM), and very low in vitro uterotrophic activity (max stim.=5-17% rel to moxestrol; EC(50)=0.5-1.8 nM).
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