This invention relates to salts of primycin formed with an organic acid--preferably a C.sub.1-16 aliphatic carboxylic acid, a halogenated carboxylic acid, an aliphatic dicarboxylic acid, an aromatic carboxylic acid, a substituted aromatic carboxylic acid or an organic sulfonic acid--or an inorganic acid--preferably a hydrohalogenic acid. There is furtheron provided a process for the preparation of new primycin salts which comprises reacting a suspension of primycin sulfate formed with an aliphatic alcohol containing 1-4 carbon atoms with a barium salt. The new primycin salts of the present invention possess excellent antibiotic properties.
本发明涉及与有机酸(优选为C.sub.1-16脂肪族
羧酸、卤代
羧酸、脂肪族二
羧酸、芳香族
羧酸、取代芳香族
羧酸或有机
磺酸)或
无机酸(优选为
水合卤酸)形成的普利霉素盐。此外,本发明还提供了一种制备新普利霉素盐的方法,其包括将含有1-4个碳原子的
脂肪醇与
钡盐反应形成普利霉素
硫酸盐悬浮液。本发明的新普利霉素盐具有优异的抗生素性能。