2-(1-Adamantyl)-2-bromoethyl-6-phenyl-1,3-dioxen-4-one

2-(1-Adamantyl)-2-chloromethyl-6-phenyl-1,3-dioxen-4-one

2-Bromomethyl-2-(3-nitroxy-1-adamantyl)-6-phenyl-1,3-dioxen-4-one

2-(3-Bromo-1-adamantyl)-2-bromomethyl-6-phenyl-1,3-dioxen-4-one

2-Methyl-2-(1-adamantyl)-6-phenyl-1,3-dioxen-4-one