The present invention relates to novel strigolactam derivatives, to processes and intermediates for preparing them, to plant growth regulator compositions comprising them and to methods of using them for controlling the growth of plants and/or promoting the germination of seeds.本發明涉及新穎的strigolactam衍生物、涉及用於製備它們之方法與中間體、涉及包括它們的植物生長調節劑組合物、並且涉及將它們用於控制植物生長和/或促進種子萌發之方法。