Patent ID: 11905274
Assignee: BEIJING TIDE PHARMACEUTICAL CO., LTD.
Field: Organic fine chemistry (Chemistry)
Classification: CPC C  A | IPC C

Claim 3:
4. The compound according to claim 3, or a pharmaceutically acceptable salt, ester, stereoisomer, polymorph, solvate, N-oxide, isotopically labeled compound, or prodrug thereof, wherein the compound has a structure of formula (II):, wherein, when the structure of formula (b) is formed, R1b is selected from the group consisting of, or when the structure of formula (a) is formed, R2b is selected from the group consisting of:
C1-8 alkyl, C2-8 alkenyl and C2-8 alkynyl, wherein any one of the CH2 moieties in the C1-8 alkyl, C2-8 alkenyl and C2-8 alkynyl is optionally replaced with O or S; saturated or partially unsaturated C3-10 cyclic hydrocarbyl group; saturated or partially unsaturated 3- to 10-membered heterocyclic group; C6-10 aryl; 5- to 14-membered heteroaryl; —C1-6 alkylene-saturated or partially unsaturated C3-10 cyclic hydrocarbyl group, —C1-6 alkylene-saturated or partially unsaturated 3- to 10-membered heterocyclic group; —C1-6 alkylene-C6-10 aryl; and —C1-6 alkylene-(5- to 14-membered heteroaryl).