The Complete List of Suppliers for tert-butyl 2-({[(1Z)-2-({(3S)-1-[({3-[4,5-bis(benzyloxy)pyridin-2-yl]-4-[(2S)-2,3-dihydroxypropyl]-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl}sulfonyl)carbamoyl]-2-oxoazetidin-3-yl}amino)-1-{2-[(tert-butoxycarbonyl)amino]-1,3-thiazol-4-yl}-2-oxoethylidene]amino}oxy)-2-methylpropanoate