شوائب بورتيزوميب 48

N,N',N''-((2R,2'R,2''R)-(((1S,1'S,1''S)-(1,3,5,2,4,6-Trioxatriborinane-2,4,6-triyl)tris(3-methylbutane-1,1-diyl))tris(azanediyl))tris(1-oxo-3-phenylpropane-1,2-diyl))tris(pyrazine-2-carboxamide); N-[(2R)-1-[[(1S)-1-[4,6-bis[(1S)-3-methyl-1-[[(2R)-3-phenyl-2-(pyrazine-2-carbonylamino)propanoyl]amino]butyl]-1,3,5,2,4,6-trioxatriborinan-2-yl]-3-methylbutyl]amino]-1-oxo-3-phenylpropan-2-yl]pyrazine-2-carboxamide; Bortezomib (R,S-Isomer)