TLR7 8 agonist 4 hydroxy-PEG10-acid (compound 9) is a drug-linker conjugate employed in antibody-drug conjugates (ADC). This compound exhibits remarkable antitumor activity by utilizing TLR7 8 agonist 4, which acts as a potent activator of TLR7 8. The TLR7 8 agonist 4 is linked to hydroxy-PEG10-acid, the ADC linker, via a cleavable bond. Overall, it demonstrates promising pharmaceutical potential in the context of ADC-based therapeutics.
TLR7 8 agonist 4 hydroxy-PEG10-acid hydrochloride (compound 9) is a drug-linker conjugate used in antibody-drug conjugates (ADCs) with high efficacy against tumors. It consists of TLR7 8 agonist 4, a potent TLR7 8 agonist, linked to the ADC linker hydroxy-PEG10-acid which can be cleaved.
D18 is an immune modulator that acts as a dual agonist for TLR7 8 (with EC50 values of 24 nM for hTLR7 and 10 nM for hTLR8, respectively). It enhances the expression of PD-L1 through epigenetic regulation, thereby increasing the sensitivity of tumors to PD-1 PD-L1 blockade. Additionally, D18 functions as a cytotoxin for ADC synthesis, specifically for the ADC HE-S2 [1].
3M-011, a potent dual toll-like receptor TLR7 8 agonist and cytokine inducer, serves as a powerful adjuvant to radiotherapy, eliciting significant local and systemic immune responses. Additionally, it effectively inhibits H3N2 influenza viral replication in the nasal cavity and exhibits strong antitumor activity[1][2][3].