Patent ID: 11952575
Assignee: ASYMCHEM LIFE SCIENCE (TIANJIN) CO., LTD.
Field: Biotechnology (Chemistry)
Classification: CPC C | IPC C

Claim 3:
4. The method according to claim 3, wherein the ketone compound is, , wherein each of R1 and R2 is independently a C1˜C8 alkyl, a C5˜C10 cycloalkyl, a C6˜C10 aryl or a C5˜C10 heteroaryl; or the R1 and R2 jointly form a C5˜C10 heterocyclyl, a C5˜C10 carbocyclyl or the C5˜C10 heteroaryl with a carbon in a carbonyl; one or more of heteroatoms in the C5˜C10 heterocyclyl and the C5˜C10 heteroaryl are independently selected from a group consisting of nitrogen, oxygen and sulfur; an aryl in the C6˜C10 aryl, a heteroaryl in the C5˜C10 heteroaryl, a carbocyclyl in the C5˜C10 carbocyclyl or a heterocyclyl in the C5˜C10 heterocyclyl is independently unsubstituted or substituted by at least one group of halogen, an alkoxy and an alkyl.