tert-butyl 6-cyano-2-[2-[4-ethyl-3-(4-morpholin-4-ylpiperidin-1-yl)phenyl]propan-2-yl]-1H-indole-3-carboxylate; Tert-butyl 6-cyano-2-(2-(4-ethyl-3-(4-morpholinopiperidin-1-yl)phenyl)propan-2-yl)-1H-indole-3-carboxylate; Alectinib intermediate