New oxazole derivatives of formula 1 and their pharmacetically acceptable salts have anthelmintic activity: ##STR1## where R is H, OH, or acyloxy of 8 to 22 carbon atoms; R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are each independently H or acyl of 1 to 6 carbon atoms.
公式1的新
噁唑衍
生物及其药物可接受的盐具有驱虫活性:其中,R为H、OH或8到22个碳原子的酰氧基;R1、R2、R3和R4分别独立地为1到6个碳原子的H或酰基。