上游原料
(1S)-2-[3,5-bis(chlorocarbonyl)-2,4,6-triiodoanilino]-1-methyl-2-oxoethyl acetate(1S)-2-[3-(chlorocarbonyl)-5-([[2-hydroxy-1-(hydroxymethyl)ethyl]amino]carbonyl)-2,4,6-triiodoanilino]-1-methyl-2-oxoethyl acetate(1S)-2-[3-[[(3-[[3-[[(2S)-2-(acetoxy)propanoyl]amino]-5-([[2-hydroxy-1-(hydroxymethyl)ethyl]amino]carbonyl)-2,4,6-triiodobenzoyl]amino]-2-hydroxypropyl)amino]carbonyl]-5-([[2-hydroxy-1-(hydroxymethyl)ethyl]amino]carbonyl)-2,4,6-triiodoanilino]-1-methyl-2-oxoethyl acetate2-amino-1,3-propanediol; serinol1,3-diamino-2-propanol
