The present invention relates to new stable sulpho-adenosyl-L-methionine (SAMe) salts particularly suitable for parenteral use, their production process, and pharmaceutical compositions containing them as active principles. Said salts correspond to the general formula: SAMe.n(CH.sub.2).sub.m (SO.sub.3 H).sub.2 (I) where n can vary from 1 to 2 and m can vary from 3 to 12. The process for producing said salts consists of the following stages: (a) enriching the starting yeast with SAMe; (b) lysing the cells and recovering a solution rich is SAMe (cell lysate); (c) prepurifying the cell lysate by ultrafiltration; (d) passing the prepurified lysate through a column of weak acid ion exchange resin and eluting with the required disulphonic acid; (e) passing the eluate of said column through a column of absorption resin and washing with the required disulphonic acid; (f) concentrating the eluate of the latter column by reverse osmosis; (g) drying the concentrated solution.
本发明涉及新的稳定的
硫酸腺苷基-L-甲
硫氨酸(S
AMe)盐,特别适用于肌肉注射,其生产过程和包含它们作为活性成分的制药组合物。所述盐对应于一般公式:S
AMe.n(CH.sub.2).sub.m (SO.sub.3 H).sub.2 (I),其中n可以从1到2变化,m可以从3到12变化。生产该盐的过程包括以下步骤:(a)用S
AMe富集起始酵母;(b)裂解细胞并回收富含S
AMe的溶液(细胞裂解物);(c)通过超滤对细胞裂解物进行预纯化;(d)通过弱酸离子交换
树脂柱传递预纯化的裂解物,并用所需的二
磺酸洗脱;(e)通过吸附
树脂柱传递所述柱的洗脱物,并用所需的二
磺酸进行洗涤;(f)通过反渗透浓缩后的后一柱洗脱物;(g)干燥浓缩的溶液。