- 专利标题: METHOD FOR PREPARING 3,6-DIAMINOPYRAZINE-2,5-DICARBOXYLIC ACID AND SYNTHETIC INTERMEDIATE THEREOF
-
申请号: US18036108申请日: 2021-09-11
-
公开(公告)号: US20240025864A1公开(公告)日: 2024-01-25
- 发明人: Junho ZHENG , Xuming HONG , Duqian ZHANG , Thomas E. ROGERS , Elena CACCHILLO
- 申请人: Hangzhou Zhongmeihuadong Pharmaceutical Co., Ltd. , MediBeacon Inc.
- 申请人地址: CN MO Zhejiang
- 专利权人: Hangzhou Zhongmeihuadong Pharmaceutical Co., Ltd.,MediBeacon Inc.
- 当前专利权人: Hangzhou Zhongmeihuadong Pharmaceutical Co., Ltd.,MediBeacon Inc.
- 当前专利权人地址: CN MO Zhejiang
- 优先权: CN 2011367514.2 2020.11.27
- 国际申请: PCT/CN2021/129540 2021.09.11
- 进入国家日期: 2023-05-09
- 主分类号: C07D241/26
- IPC分类号: C07D241/26 ; C07D487/14
摘要:
A method for preparing 3,6-diaminopyrazine-2,5-dicarboxylic acid and a synthetic intermediate thereof. The method comprises the step of preparing pyrimido[4,5-g]pteridine-2,4,7,9(1H,3H,6H,8H)-tetraone or a disalt (pteridine) thereof from 5-aminouracil or a single salt thereof.
信息查询