tert-?Butyl 6-?Cyano-?2-?(2-?(4-?ethyl-?3-?iodophenyl)?propan-?2-?yl)?benzofuran-?3-?carboxylate is an intermediate of Alectinib (C183360), a highly selective and potent anaplastic lymphoma kinase (ALK) inhibitor capable of blocking the resistant gatekeeper mutant, which results in reduced cell growth.