1-(tert-Butyl) 2-methyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydropyridine-1,2(2H)-dicarboxylate 250mg

1-(tert-Butyl) 2-methyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydropyridine-1,2(2H)-dicarboxylate 250mg