New acetylcholinesterase inhibitors and uses thereof for preventing and treating compulsive disorders and neurodegenerative disorders

A compound of formula (I):

• or a pharmaceutically acceptable salt and/or solvate thereof,
• in which
• represents a single or a double bond, and
• X is an oxygen atom or a group N—OH,
• R1 and R2 are each independently H, an optionally substituted nitrogen-containing heterocyclyl group, an optionally substituted C1-C6 aliphatic chain or an optionally substituted aryl, wherein up to 4 methylene units of the C1-C6 aliphatic chain are optionally replaced by 0, C(O), NH or N—C1-C6alkyl, provided that at least one of R1 and R2 is an optionally substituted nitrogen-containing heterocyclyl group,
• L1 and L2 are each independently a divalent radical derived from a C1-C12 aliphatic chain, wherein one or more methylene unit(s) are optionally replaced by arylene, —O—, —S—, —C(═O)—, —SO2— or —N(C1-C6 alkyl)-, wherein the C1-C12 aliphatic chain is optionally substituted,
• p and n are each independently 0 or 1, provided that p is 1 when R1 is an optionally substituted nitrogen-containing heterocyclyl group and n is 1 when R2 is an optionally substituted nitrogen-containing heterocyclyl group, and
• R′ is H, halogen, an optionally substituted C1-C6 aliphatic chain, an optionally substituted aryl, an optionally substituted heteroaryl or an optionally substituted C1-C6 alkyl-aryl, wherein up to 4 methylene units of the C1-C6 aliphatic chain are optionally replaced by O, C(O), NH or N—C1-C6alkyl.