申请人:Bailey Allan R.
公开号:US20100280270A1
公开(公告)日:2010-11-04
A process for the preparation of iosimenol comprising reacting 5,5′-[(1,3-dioxo-1,3-propanediyl)diimino]bis[N-(2,3-dihydroxypropyl)-2,4,6-triiodo-1,3-benzenedicarboxamide] (C-VI) with a 3-halo-1,2-propanediol in an aqueous solvent. A process for the preparation of C-VI comprising reacting 3,3′-[(1,3-dioxo-1,3-propanediyl)diimino]bis[5-(aminocarbonyl)-2,4,6-triiodobenzoyl chloride] (C-V) with 3-amino-1,2-propanediol in the presence of an inorganic base and a suitable non-aqueous polar solvent. A process for the preparation of C-V comprising reacting 3-amino-5-(aminocarbonyl)-2,4,6-triiodobenzoyl chloride (C-IV) with malonyl dichloride in a solvent comprising a suitable ester solvent, a suitable nitrile solvent or mixtures thereof.
一种制备iosimenol的过程,包括在水溶剂中将5,5'-[(1,3-二氧代-1,3-丙二酸二基)二亚胺基]双[N-(2,3-二羟基丙基)-2,4,6-三碘-1,3-苯二甲酰胺](C-VI)与3-卤代-1,2-丙二醇反应。一种制备C-VI的过程,包括在无机碱和适当的非水极性溶剂的存在下将3,3'-[(1,3-二氧代-1,3-丙二酸二基)二亚胺基]双[5-(氨基甲酰基)-2,4,6-三碘苯甲酰氯](C-V)与3-氨基-1,2-丙二醇反应。一种制备C-V的过程,包括在包含适当酯类溶剂、适当腈类溶剂或其混合物的溶剂中将3-氨基-5-(氨基甲酰基)-2,4,6-三碘苯甲酰氯(C-IV)与丙二酰二氯反应。