SIAIS117 is a potent Brigatinib-PROTAC degrader. SIAIS117 is a ALK PROTAC based on Brigatinib and VHL-1 conjunction. SIAIS117 can degrade ALK G1202R point mutation effectively. SIAIS117 blocks the growth of SR and H2228 cancer cell lines. SIAIS117 has the potentially anti-proliferation ability of small cell lung cancer.