| 摘要 |
This invention relates to a method for preparing 3-halo-4,5-dihydro-1H- pyrazole compound of Formula (I), comprising contacting with HX1 a different 4,5-dihydro-1H-pyrazole compound of Formula (II), wherein X1 is halogen and L, R, k and X 2 are as defined in the disclosure. This invention also discloses preparation of compounds of Formula (III) wherein X1, R3, R6, R7, R8a, R8b, and n are as defined in the disclosure.
|
