Patent number: 11813334
Abstract: The present invention relates to the technical field of medicines, and relates to a polyethylene glycol conjugated drug, a preparation method therefor and the use thereof. In particular, the present invention relates to a polyethylene glycol conjugated drug as shown in formula I or a pharmaceutically acceptable salt thereof. The present invention also relates to a method for preparing the polyethylene glycol conjugated drug or the pharmaceutically acceptable salt thereof, a pharmaceutical composition comprising the polyethylene glycol conjugated drug or the pharmaceutically acceptable salt thereof, and the use thereof in the preparation of a drug.
Type:
Grant
Filed:
March 11, 2020
Date of Patent:
November 14, 2023
Assignee:
CHONGQING UPGRA BIOTECHNOLOGY CO., LTD.
Inventors:
Gaoquan Li, Dajun Li, Qian Zhang, Diedie Li, Chengzhi Gao, Yue Liu, Xiaoling Ding, Yusong Wei, Xiangwei Yang, Yongchen Peng, Jia Gao, Qiang Luo, Yanxia Heng, Mei Liu, Yuyang Yi, Xiafan Zeng, Tao Tu, Xiao Tang, Xi Liu, Jianhuan Li, Zhaojie Wang, Bin Wang, Jinping Wan, Mingyang Hou, Jiao Liu, Huiyu Chen, Jie Lou, Yue Yang, Yuanqiang Wang
Patent number: 11793881
Abstract: The present invention relates to a polyethylene glycol conjugate medicament, a preparation method therefor and use thereof, and in particular relates to a polyethylene glycol conjugate medicament represented by formula (I) or a pharmaceutically acceptable salt thereof. The present invention also relates to a method for preparing the polyethylene glycol conjugate medicament or a pharmaceutically acceptable salt thereof, and an intermediate of the same, a pharmaceutical composition comprising the polyethylene glycol conjugate medicament or a pharmaceutically acceptable salt thereof, and use thereof in preparing a medicament.
Type:
Grant
Filed:
November 18, 2020
Date of Patent:
October 24, 2023
Assignee:
CHONGQING UPGRA BIOTECHNOLOGY CO., LTD.
Inventors:
Gaoquan Li, Dajun Li, Qian Zhang, Yusong Wei, Yongchen Peng, Xiangwei Yang, Xiafan Zeng, Gang Mei, Diedie Li, Chengzhi Gao, Xiaoling Ding, Yue Liu, Jia Gao, Yuyang Yi, Yanxia Heng, Xi Liu, Tao Tu, Kai Wang, Liwei Liu, Mei Liu, Qiang Luo, Xiao Tang, Jie Lou, Huiyu Chen, Yue Yang, Yuanqiang Wang