2-(Diarylmethoxymethyl)-3β-aryltropanes &amp; 2β-[3-(Diarylmethoxy)propyl]-3β-aryltropanes; third variant synthesized with: <a class="external free" href="https://en.wikipedia.org/wiki/File:Benztropine_phenyltropane.png">https://en.wikipedia.org/wiki/File:Benztropine_phenyltropane.png</a>
Lifen Xu, et al.
J. Med. Chem. 2004, 47m 1676-1682