A compound of Formula (4), wherein each X is independently fluorine or chlorine; n is 1 or 2; R1 is C3-C8 alkyl, phenyl or benzyl; and R2 is C1-C6 alkyl; and its production and use.
一种公式(4)的化合物,其中每个X独立地为
氟或
氯;n为1或2;R1为C3-C8烷基,苯基或苄基;R2为C1-C6烷基;以及其生产和使用。