3-bromo-1-(oxan-2-yl)-1h-pyrazole; 3-Bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazole; 3-Bromo-1-(oxan-2-yl)pyrazole; 3-Bromo-1-tetrahydropyran-2-yl-pyrazole;