YT 6-2-PEG3-C2-NH2 is a conjugate of the autophagy-targeting ligand (ATL) targeting p62/SQSTM1 and an AUTOTAC linker. It is used in the synthesis of the AUTOTAC degrader ATC-324 for the androgen receptor (AR). ATC-324 induces the formation of the AR/p62 complex, leading to autophagy-lysosomal degradation of AR. This action reduces nuclear AR levels and downregulates target gene expression of AR and AR-v7, effectively degrading common AR mutants found in prostate cancer (PCa).