阅读说明：本技术 取代的氮杂螺环作为除草剂 (Substituted azaspiro rings as herbicides ) 是由 A·J·亨尼西 E·P·琼斯 S·达勒 A·W·格利高里 I·T·T·豪斯比 Y·伯恩诺厄 于 2020-02-12 设计创作，主要内容包括：本发明涉及具有式(I)的化合物,其中R～1、R～2、R～3、R～4和G如本文所定义。本发明进一步涉及包含具有式(I)的化合物的除草组合物、其用于控制杂草的用途,特别是在有用植物的作物中。(The present invention relates to compounds having formula (I) wherein R 1 、R 2 、R 3 、R 4 And G is as defined herein. The invention further relates to herbicidal compositions comprising compounds of formula (I), their use for controlling weeds, in particular in crops of useful plants.)