Patent ID: 8778223

Claim:
A compound having Formula I: where in Formula I R′ is H or F; R″ is —F, —CH2-F, —CHFCH2F, —CHFR a , or wherein R a is hydrogen or an alkyl group which has 1-8 C atoms in which any non-adjacent —CH2- groups are optionally replaced by one or more of O atoms, —CO— groups, —CO—O— groups or —CH═CH— groups, and which alkyl group is optionally substituted with one or more halogen atoms which may be the same or different; the A ring is a cyclohexyl ring, and the B ring is one or more rings selected from the group consisting of: cyclohexyl; cyclohexenyl; phenyl; biphenyl; pyrimidinyl; pyridinyl; pyrazinyl; thiadiazolyl; naphthalenyl; dioxanyl; tetrahydropyranyl; dithianyl; or tetrahydrothiopyranyl; where any ring may independently include one or more substitutions including halogen; L is selected from a single bond, —CH2CH2-, —CH═CH—, —C≡C—, —CO2-, —O2C—, —CF2O—, and —OCF2-; R is hydrogen or an alkyl group which has 1-8 C atoms in which any non-adjacent —CH2- groups are optionally replaced by one or more of O atoms, —CO— groups, —CO—O— groups or —CH═CH— groups, and which alkyl group is optionally substituted with one or more halogen atoms which may be the same or different.