Silodosin Stage-I Impurity

Chemical Name: 3-{7-cyano -5-[2-({2-[2-(2,2,2-trifluro ethoxy )-phenoxy ]ethyl}aminopropyl )-2,3-dihydro-1H-indol-1-yl)-propyl benzoate-N-acetyl-L-glutamate salt

Smile: O=C(C1=CC=CC=C1)OCCCN(CCC2=CC(C[C@@H](C)NCCOC(C=CC=C3)=C3OCC(F)(F)F)=C4)C2=C4C#N.[H][C@@](NC(C)=O)(C(O)=O)CCC(O)=O