Substituted tropanes CompoundStructure Substituted tropanes Troparil 2-β-Carbomethoxy-3-β-(4-fluorophenyl)tropane (WIN-35428) Cocaine Scopolamine 2β-Propanoyl-3β-(2-naphthyl)-tropane (WF-23) Butylscopolamine 2β-Carboisopropoxy-3β-(4-iodophenyl)tropane (RTI-121)