Patent ID: 11858957
Assignee: ANTENGENT THERAPEUTICS LIMITED
Field: Organic fine chemistry (Chemistry)
Classification: CPC C  A | IPC C

Claim 8:
9. The method of claim 1, wherein provisos a) or b) apply, wherein provisos a) and b) are as follows:
a) if R4 and R6 are each —C(O)OH and R5 is benzyl substituted on the phenyl ring with a heterocyclyl or heteroaryl substituent, then the heterocyclyl or heteroaryl substituent is selected from unsubstituted or substituted pyrrolidinyl, piperazinonyl, piperidonyl, tetrahydropyrimidonyl, pyridonyl, and pyridyl; and
b) if R4 is —C(O)OH or tetrazolyl, R5 is —C(O)OH, and R5 is benzyl substituted on the phenyl ring with a second phenyl ring, then either the benzyl phenyl ring or the second phenyl ring is substituted with —C(O)OR9 where R9 is H or alkyl.