Velpatasvir Impurity 19

Chemical Name: (S)-2-amino-1-((2S,5S)-2-(9-(2-((2S,4S)-1-((R)-2-amino-2-phenylacetyl)-4-(methoxymethyl)pyrrolidin-2-yl)-1H-imidazol-5-yl)-1,11-dihydroisochromeno[4',3':6,7]naphtho[1,2-d]imidazol-2-yl)-5-methylpyrrolidin-1-yl)-3-methylbutan-1-one

Smile: COC[C@H]1C[C@@H](C2=NC=C(C3=CC4=C(C5=CC6=CC=C7C(NC([C@H]8N(C([C@@H](N)C(C)C)=O)[C@@H](C)CC8)=N7)=C6C=C5OC4)C=C3)N2)N(C([C@H](N)C9=CC=CC=C9)=O)C1