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

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

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

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

3,5-dibenzoyl-1(2)H-pyrazol-4-ol