SIAIS562055

SIAIS562055 is a potent cereblon-based SOS1 PROTAC with a Kd of 95.9 nM. SIAIS562055 exhibits sustained degradation of SOS1 and inhibition of downstream ERK pathways. SIAIS562055 effectively blocked the binding of KRASG12C or KRASG12D to SOS1, with the IC50 values of 95.7 nM and 134.5 nM, respectively. SIAIS562055 exhibits potent anticancer activity. (Pink: SOS1 ligand ; Black: linker (HY-W539874) ; Blue: E3 ligase ligand (HY-W076696) ).

C49H62F3N7O5S

918.12

COC1=CC2=C(C(N[C@@H](C3=CC(N)=CC(C(F)(F)F)=C3)C)=NC(C)=N2)C=C1OC4CCN(CC4)CCCCCCCCCCCCSC5=C6C(C(N(C6)C7C(NC(CC7)=O)=O)=O)=CC=C5

PROTACs; Ras; SOS1

Cereblon; K-Ras

Room temperature