Heterocyclic trichloromethyl derivatives, process for their preparation and their use
申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0010348A1
公开(公告)日:1980-04-30
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.
1,3-Benzoxazine trichloromethyl derivatives, compositions and use
申请人:Imperial Chemical Industries Limited
公开号:US04268510A1
公开(公告)日:1981-05-19
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 utilization.