Bortezomib Impurity 14

Chemical Name: N-((S)-1-(((R)-3-methyl-1-((3aS,4S,6S,7aR)-3a,5,5-trimethylhexahydro-4,6-methanobenzo[d][1,3,2]dioxaborol-2-yl)butyl)amino)-1-oxo-3-phenylpropan-2-yl)pyrazine-2-carboxamide

Synonym: (E)-6-((4-((2-butyl-5-(2-carboxy-3-(thiophen-2-yl)prop-1-en-1-yl)-1H-imidazol-1-yl)methyl)benzoyl)oxy)-3,4,5-trihydroxytetrahydro-2H-pyran-2-carboxylic acid