Fesoterodine Dimer Diester

Chemical Name: 2-((S)-3-(diisopropylamino)-1-phenylpropyl)-4-(((3-((R)-3-(diisopropylamino)-1-phenylpropyl)-4-(isobutyryloxy)benzyl)oxy)methyl)phenyl isobutyrate fumarate

Smile: O=C(C(C)C)OC1=C([C@H](CCN(C(C)C)C(C)C)C2=CC=CC=C2)C=C(COCC3=CC=C(OC(C(C)C)=O)C([C@H](C4=CC=CC=C4)CCN(C(C)C)C(C)C)=C3)C=C1.O=C(/C=C/C(O)=O)O