The invention relates to novel heterocyclic trichloromethyl derivatives, particularly 2-trichloromethyl-substituted quinazoline, benzo (d]-[1,3] -oxazine and benzo[e]-[1,3] -oxazine derivatives, for example 1, 2-dihydro-2 -trichloromethylquinazolin -4-one. The compounds of the invention are at least as effective as prior art trichloromethyl derivatives, which reduce the production of methane during the rumen metabolism of ruminant animals, and increase the formation of propionate at the expense of acetate, and hence improve the animals' rate of growth and their efficiency of food utilisation.
本发明涉及新型杂环三
氯甲基衍
生物,特别是2-三
氯甲基取代的
喹唑啉、苯并(d)-[1,3]-恶嗪和苯并[e]-[1,3]-恶嗪衍
生物,例如1,2-二氢-2-三
氯甲基
喹唑啉-4-酮。本发明的化合物至少与现有技术中的三
氯甲基衍
生物同样有效,可减少反刍动物瘤胃代谢过程中
甲烷的产生,增加
丙酸盐的形成,从而提高动物的生长速度和食物利用效率。