2H-Pyran, 3,4-dihydro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-
3,4-Dihydro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-pyran
2-(3,4-Dihydro-2H-pyran-6-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
2-(5,6-Dihydro-4H-pyran-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane