Chemical Name: ((R)-3-methyl-1-((S)-3-phenyl-2-((R)-3-phenyl-2-(pyrazine-2-carboxamido)propanamido)propanamido)butyl)boronic acid
Synonym: Aprepitant M2 Matabolite 6-Epimer
Smile: CC(C)C[C@@H](B(O)O)NC([C@@H](NC([C@H](NC(C1=NC=CN=C1)=O)CC2=CC=CC=C2)=O)CC3=CC=CC=C3)=O