Patent ID: 8802694

Claim:
A compound selected from: 3-methylcarbonyl-3,6-diazabicyclo[3.1.1]heptane; 3-isopropylcarbonyl-3,6-diazabicyclo[3.1.1]heptane; 3-cyclopropylcarbonyl-3,6-diazabicyclo[3.1.1]heptane; 3-propoxycarbonyl-3,6-diazabicyclo[3.1.1]heptane; 3-isopropoxycarbonyl-3,6-diazabicyclo[3.1.1]heptanes; 3-methoxyethoxycarbonyl-3,6-diazabicyclo[3.1.1]heptane; 3-(2-fluoroethoxy)carbonyl-3,6-diazabicyclo[3.1.1]heptane; 3-(2-bromofuran-5-yl)carbonyl-3,6-diazabicyclo[3.1.1]heptane; 3-(3-bromofuran-5-yl)carbonyl-3,6-diazabicyclo[3.1.1]heptane; 3-(3-chlorofuran-2-yl)carbonyl-3,6-diazabicyclo[3.1.1]heptane; 3-(isoxazol-5-yl)carbonyl-3,6-diazabicyclo[3.1.1]heptane; 3-(2-methoxyethyl)carbonyl-3,6-diazabicyclo[3.1.1]heptane; 3-(2,2,2-trifluoroethyl)carbonyl-3,6-diazabicyclo[3.1.1]heptane; 3-(tetrahydrofuran-3-yl)carbonyl-3,6-diazabicyclo[3.1.1]heptane; 6-(2-chlorofuran-5-yl)carbonyl-3,6-diazabicyclo[3.1.1]heptane; 6-(2-bromorofuran-5-yl)carbonyl-3,6-diazabicyclo[3.1.1]heptane; 6-cyclobutylcarbonyl-3,6-diazabicyclo[3.1.1]heptane; 6-(2-methoxyethyl)carbonyl-3,6-diazabicyclo[3.1.1]heptane; cis-3-(2-fluorocycloprop-1-yl)carbonyl-3,6-diazabicyclo[3.1.1]heptane; trans-3-(2-fluorocycloprop-1-yl)carbonyl-3,6-diazabicyclo[3.1.1]heptane; cis-6-(2-fluorocycloprop-1-yl)carbonyl-3,6-diazabicyclo[3.1.1]heptane; and trans-6-(2-fluorocycloprop-1-yl)carbonyl-3,6-diazabicyclo[3.1.1]heptane; or a pharmaceutically acceptable salt thereof.