Synthesis of N-[4-(2-dimethylaminoethoxy) benzyl-α-14C]-3,4,5-trimethoxybenzamide hydrochloride and N-[4-(2- methylaminoethoxy)benzyl-α-14C]-3, 4-diethoxybenzamide hydrochloride
作者:R. L. Wineholt、J. D. Johnson、P. J. Heck、H. H. Kaegi
DOI:10.1002/jlcr.2590060108
日期:1970.1
The anti-emetic compounds N-[4-(2-dimethylaminoethoxy)benzyl-α-14C]-3,4,5-trimethoxybenzamide hydrochloride (10) and N-[4-(2-methylaminoethoxy)benzyl-α-14C]-3,4-diethoxybenzamide hydrochloride (11) were prepared. The synthesis of 10 in four steps provided the purified material in 29 % yield from carbon dioxide. The same series of reactions was used to prepare N-[4-(2-benzylmethylamino-ethoxy)benzyl-α-14C]-3,4-diethoxybenzamide (9), which after an additional debenzylation step furnished 11 in 56 % yield based on carbon dioxide.
制备了止吐化合物 N-[4-(2-二甲氨基乙氧基)苄基-α-14C]-3,4,5-三甲氧基苯甲酰胺盐酸盐(10)和 N-[4-(2-二甲氨基乙氧基)苄基-α-14C]-3,4-二乙氧基苯甲酰胺盐酸盐(11)。通过四个步骤合成 10,以二氧化碳为纯化物,收率为 29%。用同样的系列反应制备了 N-[4-(2-苄基甲基氨基-乙氧基)苄基-α-14C]-3,4-二乙氧基苯甲酰胺(9),在经过一个额外的去苄基化步骤后,得到了 11,二氧化碳收率为 56%。