反应条件
1: 5-(acetylamino)-N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodo-1,3-benzenedicarboxamide With sodium hydroxide in 2-(2-methoxy-ethoxy)-ethanol; water T=44 - 60°C; 2: 1,2-dihydroxy-3-chloropropane in 2-(2-methoxy-ethoxy)-ethanol; water T=29 - 31°C; 21 h; 3: With hydrogenchloride in 2-(2-methoxy-ethoxy)-ethanol; water pH=4 - 5; Product distribution / selectivity;