公开(公告)号：US20240083852A1

公开(公告)日：2024-03-14

申请号：US18234629

申请日：2023-08-16

Applicant: Shaoxing Shangyu Xin Yinbang Biochemical Co., Ltd.

Inventor： Shengxue LIU ,  Yintao SHI ,  Qiang GONG ,  Sufang ZHONG ,  Jianjiang ZHANG ,  Xiaoyuan QIAN ,  Fang GUO ,  Rujun CHEN ,  Xiaoying JIAN

IPC: C07D231/14 ,  C07D409/12

CPC classification number: C07D231/14 ,  C07D409/12

Abstract: The present application relates to a synthesis method for N-methyl-3-substituted methyl-4-pyrazolamide derivative and N-methyl-3-substituted methyl-4-pyrazolic acid, including the following steps: step S1: synthesis of intermediate E; step S2: synthesis of intermediate D; step S3: synthesis of intermediate C; step S4: synthesis of N-methyl-3-substituted methyl-4-pyrazolamide derivative; and synthesis of N-methyl-3- substituted methyl-4-pyrazolic acid by decomposition of N-methyl-3-substituted methyl-4-pyrazolamide derivative.