Carfilzomib Impurity 76

Chemical Name: Methyl ((S)-2-amino-4-phenylbutanoyl)-L-leucyl-L-leucyl-L-phenylalaninate trifluoroacetate

Synonym: 8-Hydroxy-3,4-dihydro-2(1H)-quinolinone; 3,4-Dihydro-8-hydroxy-2(1H)-quinolinone; 8-Hydroxy-hydrocarbostyril; 3,4-Dihydro-8-hydroxy-1H-quinolin-2-one; 3,4-Dihydro-8-hydroxycarbostyril; 8-Hydroxy-1,2,3,4-tetrahydro-2-quinolinone; 8-Hydroxy-3,4-dihydro-2(1H)-quinolinone; 8-Hydroxy-3,4-dihydrocarbostyril;

Smile: O=C(OC)[C@H](CC1=CC=CC=C1)NC([C@H](CC(C)C)NC([C@H](CC(C)C)NC([C@@H](N)CCC2=CC=CC=C2)=O)=O)=O.O=C(O)C(F)(F)F