Patent ID: 11858905
Assignee: BIOFRONT THERAPEUTICS (BEIJING) CO., LTD.
Field: Organic fine chemistry (Chemistry)
Classification: CPC C  A | IPC A  C

Claim 13:
14. The compound of claim 2, wherein R3 is a group represented by formula (VII-a), wherein R39—R42 are independently selected from H, halogen, a hydroxyl group, an alkyl group, a fluoroalkyl group, a cycloalkyl group, an alkoxy group, an aryl group, a heteroaryl group, a heterocyclic group, and N—R49, wherein R49 is selected from H, an alkyl group, an aryl group, a heterocyclic group, and a ketone group; or
formula (VII-b), , wherein
R43 is H, an alkyl group, a cycloalkyl group, an aryl group, a heteroaryl group, or a heterocyclic group, and
R44 and R45 are independently selected from H, halogen, a hydroxyl group, an alkyl group, a fluoroalkyl group, a cycloalkyl group, an alkoxy group, an aryl group, a heteroaryl group, and a heterocyclic group, and each of R44 and R45 is optionally substituted by one or more groups selected from halogen, a hydroxyl group, an alkyl group, a fluoroalkyl group, a cycloalkyl group, an aryl group, a heterocyclic group, and an alkoxy group; or
formula (VII-c), , wherein
R46 is H, an alkyl group, a cycloalkyl group, an aryl group, a heteroaryl group, or a heterocyclic group, and
R47 and R43 are independently selected from H, halogen, a hydroxyl group, an alkyl group, a fluoroalkyl group, a cycloalkyl group, an alkoxy group, an aryl group, a heteroaryl group, and a heterocyclic group, and each of R47 and R48 is optionally substituted by one or more groups selected from halogen, a hydroxyl group, an alkyl group, a fluoroalkyl group, a cycloalkyl group, an aryl group, a heterocyclic group, and an alkoxy group.