112302-59-7 2-(Diphenylacetylamino)-3-ethoxycarbonylthieno(2,3-b)quinuclidine 4H-4,7-Ethanothieno(2,3-b)pyridine-3-carboxylic acid, 5,6-dihydro-2-((diphenylacetyl)amino)-,ethyl ester BRN 5778592