VELCADE;dpba;BORTEZOMIB;[(1r)-3-methyl-1-[[(2s)-1-oxo-3-phenyl-2-[(pyrazinylcarbonyl)amino]propyl]amino]butyl]-boronic acid;VELCADE(BORTEZOMIB);Boronic acid, B-[(1R)-3-methyl-1-[[(2S)-1-oxo-3-phenyl-2-[(2-pyrazinylcarbonyl)amino]propyl]amino]butyl]-;Bortezomib for research