A process for preparing 2-(2-(5-dimethylaminomethyl- furan-2-ylmethylthio)ethylamino)-5-(2-methoxypyrid-4-yl- methyl)pyrimidin-4-one which comprises reacting 2-(2-(furan-2-ylmethylthio)ethylamino)-5-(2-methoxypyrid-4-ylmethyl)pyrimidin-4-one with a organic solution of bis-(dimethylamino)methane at a pH of about 1.3 to about 2.5. The product is an H2-antagonist and also is of value in forming 2-(2-(5-dimethylaminomethylfuran-2-yl- methylthio)ethylaminol-5-(2-hydroxypyrid-4-ylmethyl)-pyrimidin-4-one by deprotecting.
一种制备 2-(2-(5-二
甲基氨基甲基-
呋喃-2-基甲
硫基)乙基
氨基)-5-(
2-甲氧基吡啶-4-基甲基)
嘧啶-4-酮的工艺,包括在 pH 值约为 1.3 至约 2.5 的条件下使 2-(2-(
呋喃-2-基甲
硫基)乙基
氨基)-5-(
2-甲氧基吡啶-4-基甲基)
嘧啶-4-酮与双(二甲基
氨基)
甲烷的有机溶液反应。3至约2.5。该产物是一种 H2-拮抗剂,还具有通过脱保护形成 2-(2-(5-二
甲基氨基甲基呋喃-2-基-甲
硫基)乙基
氨基醇-5-(2-
羟基吡啶-4-基甲基)-
嘧啶-4-酮的价值。