Abstract: This invention discloses novel gamma secretase inhibitors of the formula: R2 and R3, or R2 and R4, or R3 and R4, together with the atoms to which they are bound, can form a fused cycloalkyl or fused heterocycloalkyl ring. The cycloalkyl ring or the heterocycloalkyl ring can be optionally substituted with one or more substitutents. One or more compounds of formula (I), or formulations comprising such compounds, may be useful, e.g. in treating Alzheimer's Disease.

Abstract: Gamma-secretase inhibitors of the formula: are useful in treating various neurodegenerative diseases, wherein, for example: R1 includes unsubstituted or substituted aryl or heteroaryl groups; R2 includes —C(O)—Y, -alkylene-C(O)—Y, -alkylene-cycloalkylene-C(O)—Y, -cycloalkylene-alkylene-C(O)—Y, -alkylene-cycloalkylene-alkylene-C(O)—Y, -cycloalkylene-C(O)—Y, —S(O)—Y, -alkylene-S(O)—Y, -alkylene-cycloalkylene-S(O)—Y, -cycloalkylene-alkylene-S(O)—Y, -alkylene-cycloalkylene-alkylene-S(O)—Y, -cycloalkylene-S(O)—Y, —S(O2)—Y, -alkylene-S(O2)—Y, -alkylene-cycloalkylene-S(O2)—Y, -cycloalkylene-alkylene-S(O2)—Y, -alkylene-cycloalkylene-alkylene-S(O2)—Y, and -cycloalkylene-S(O2)—Y, wherein Y is as defined herein, and each of said alkylene or cycloalkylene may be unsubstituted or substituted as provided herein; each R3 is independently includes H, alkyl, —O-alkyl, —OH, —N(R9)2, acyl, and aroyl; or the moiety (R3)2, together with the ring carbon atom to which it is shown attached in formula I, defines a carbonyl

Abstract: The present invention discloses methods of using antagonists for melanin-concentrating hormone (MCH), to treat obesity, metabolic disorders, eating disorders such as hyperphagia, and diabetes, as well as novel compounds which are antagonists for melanin-concentrating hormone (MCH). In other aspects, the invention is directed to pharmaceutical compositions comprising such MCH antagonists as well as methods for preparing such compounds. Compounds of the invention generally have the structure: where the substituents are as defined herein.