spiro[8-azoniabicyclo[3.2.1]octane-8,1'-azolidin-1-ium]-3-yl 2-hydroxy-2,2-di(phenyl)acetate
2-hydroxy-2,2-di(phenyl)acetic acid 3-spiro[8-azoniabicyclo[3.2.1]octane-8,1'-azolidin-1-ium]yl ester
2-hydroxy-2,2-di(phenyl)acetic acid spiro[8-azoniabicyclo[3.2.1]octane-8,1'-azolidin-1-ium]-3-yl ester
spiro[8-azoniabicyclo[3.2.1]octane-8,1'-azolidin-1-ium]-3-yl 2-hydroxy-2,2-di(phenyl)ethanoate