An inner salt of L-carnitine is prepared by reduction, with a suitable reducing agent, of a compound of formula (I):
where X1 and X2, which may be the same or different, are hydroxy, C1–C4 alkoxy, phenoxy, halogen, or X1 and X2, when taken together are an oxygen atom and the resulting compound is a derivative of succinic anhydride; Y is halogen, a mesyloxy or a tosyloxy group, and subsequent treatment with water, then with a base and then with trimethylamine.
一种
L-肉碱内盐的制备方法,通过使用适当的还原剂还原式(I)的化合物,其中X1和X2可以是相同或不同的羟基,C1-C4烷氧基,苯氧基,卤素,或当X1和X2组合在一起时,是一个氧原子,所得化合物是
琥珀酸酐衍
生物; Y是卤素,mesyloxy或tosyloxy基团,随后用
水处理,然后用碱和
三甲胺处理。