Treprostinil Impurity 3

Chemical Name: 2-(((1R,2R,3aS,9aS)-2-hydroxy-1-((S)-3-(2-(((2R,3R,3aS,9aS)-2-hydroxy-3-((R)-3-hydroxyoctyl)-2,3,3a,4,9,9a-hexahydro-1H-cyclopenta[b]naphthalen-6-yl)oxy)acetoxy)octyl)-2,3,3a,4,9,9a-hexahydro-1H-cyclopenta[b]naphthalen-5-yl)oxy)acetic acid

Smile: OC(COC1=CC=CC2=C1C[C@](C[C@@H](O)[C@@H]3CC[C@@H](OC(COC4=CC(C[C@@]([C@@H](CC[C@H](O)CCCCC)[C@H](O)C5)([H])[C@@]5([H])C6)=C6C=C4)=O)CCCCC)([H])[C@]3([H])C2)=O