申请人:Pfizer Inc.
公开号:US04935442A1
公开(公告)日:1990-06-19
A series of tetrahydrofuran-containing, macrocyclic polyether compounds. The macrocycles have a 21-membered ring, incorporating six oxygen atoms, and they have a carboxy group (or a salt thereof) directed towards the interior of the ring. Administration of the compounds of the invention to ruminant animals (e.g. cattle and sheep) modifies their digestive fermentation processes such that the volatile fatty acids produced in the rumen contain a higher proportion of propionates rather than acetates, thereby increasing the efficiency of feed utilization in said ruminant animals. Additionally, the compounds of the invention show antibacterial activity in vitro against certain gram-positive microorganisms.
一系列含有四氢呋喃的大环聚醚化合物。大环分子具有一个21元环,包含六个氧原子,并且具有一个羧基(或其盐)朝向环内。将本发明的化合物注入反刍动物(如牛和羊)的体内,可以改变它们的消化发酵过程,使瘤胃中产生的挥发性脂肪酸中丙酸盐的比例更高,而不是醋酸盐,从而提高反刍动物的饲料利用效率。此外,本发明的化合物在体外显示出对某些革兰氏阳性微生物的抗菌活性。