上游原料
5-amino-2,4,6-triiodoisophthaloyl dichloride2-isopropyl-1,3-dioxane-5-carbonyl chloride2,4,6-triiodo-5-{[(2-isopropyl-1,3-dioxan-5-yl)carbonyl]amino}isophthaloyl dichloride2,3-Dihydroxy-N-methylpropylamine; N-Methyl-3-amino-1,2-propanediol; 3-Methylamino-1,2-propanediolN~1~,N~3~-bis(2,3-dihydroxypropyl)-2,4,6-triiodo-5-{[(2-isopropyl-1,3-dioxan-5-yl)carbonyl]amino}-N~1~,N~3~-dimethylisophthalamide
