申请人:Hoffmann-La Roche Inc.
公开号:US04098598A1
公开(公告)日:1978-07-04
Compounds represented by the formula ##STR1## wherein R.sub.1 and R.sub.2 each are hydrogen or a phenyl; R.sub.3 is cyano; R.sub.5 OCO- in which R.sub.5 is a lower alkyl having 1-8 carbons, cycloalkyl having 3-6 carbons, alkenyl having 2-8 carbons, alkynyl having 2-8 carbons or phenyl; R.sub.6 SO.sub.2 - in which R.sub.6 is a lower alkyl having 1-8 carbons, cycloalkyl having 3 to 6 carbons or phenyl; (R.sub.7)(R.sub.8)NCO-- in which R.sub.7 and R.sub.8 each are hydrogen or a lower alkyl having 1-4 carbons, cycloalkyl having 3-6 carbons, alkenyl having 2-4 carbons or phenyl, or R.sub.7 and R.sub.8 together with the nitrogen atom to which they are attached are a 3-7 membered ring which may contain a further hetero atom; or R.sub.9 CO-- in which R.sub.9 is a lower alkyl having 1-4 carbons, cycloalkyl having 3 to 6 carbons or phenyl; and R.sub.4 is hydrogen or a lower alkyl having 1-4 carbons, And salts thereof, having activity which influences plant growth, processes for making such compounds, compositions for using the compounds and methods of using the compounds to influence plant growth are disclosed.
本发明揭示了由以下式子表示的化合物:##STR1##其中R.sub.1和R.sub.2分别是氢或苯基;R.sub.3是氰基;R.sub.5 OCO-其中R.sub.5是具有1-8个碳的低级烷基,具有3-6个碳的环烷基,具有2-8个碳的烯基,具有2-8个碳的炔基或苯基;R.sub.6 SO.sub.2-其中R.sub.6是具有1-8个碳的低级烷基,具有3到6个碳的环烷基或苯基;(R.sub.7)(R.sub.8)NCO-其中R.sub.7和R.sub.8分别是氢或具有1-4个碳的低级烷基,具有3-6个碳的环烷基,具有2-4个碳的烯基或苯基,或R.sub.7和R.sub.8与它们连接的氮原子一起是一个3-7个成员的环,该环可能含有进一步的杂原子;或R.sub.9 CO-其中R.sub.9是具有1-4个碳的低级烷基,具有3到6个碳的环烷基或苯基;以及R.sub.4是氢或具有1-4个碳的低级烷基,以及这些化合物的盐,具有影响植物生长的活性,揭示了制备这些化合物的方法,使用这些化合物的组合物和使用这些化合物影响植物生长的方法。