A morphine component, e.g., a concentrate of poppy straw, is converted into codeine in high yield and high purity and in a highly controlled manner. The conversion process involves the following steps: (a) providing a solution or suspension of a morphine component in an inert solvent or a mixture of solvents; (b) methylating the resultant solution or suspension with a methylating agent in the presence of an alkaline ingredient; and (c) recovering the resultant codeine as the free base or as a salt.
一种
吗啡成分,例如罂粟秸秆浓缩物,以高产率、高纯度和高度受控的方式转化为
可待因。转化过程涉及以下步骤:(a)在惰性溶剂或溶剂混合物中提供
吗啡成分的溶液或悬浮液;(b)在碱性成分存在的情况下,用甲基化剂对所得溶液或悬浮液进行甲基化处理;以及(c)将所得的
可待因作为自由碱或盐进行回收。