Cannabinoid derivatives, precursors and uses

A compound of the Formula (XII):

• wherein,
• the R1 groups are independently or simultaneously selected from the group consisting of hydrogen and deuterium;
• and at least one R1 is deuterium;
• R2 to R3 represent hydrogen, deuterium, optionally substituted C1-C20-alkyl, optionally substituted C2-C20-alkenyl, optionally substituted C2-C20-alkynyl, optionally substituted C3-C20-cycloalkyl, optionally substituted C6-C14-aryl, optionally substituted C5-C14-heteroaryl, or an optionally substituted acyl group, wherein the optional substituents are hydroxyl, halo or C1-C6-alkyl, and wherein one or more of the carbon atoms in the alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heteroaryl or acyl groups of R2 to R3 is optionally replaced with a heteroatom selected from the group consisting of O, S, N, P and Si, which, where possible, is optionally substituted with one or more groups;
• R5 and R6 represents hydrogen, deuterium, halide, optionally substituted C1-C20-alkyl, optionally substituted C2-C20-alkenyl, optionally substituted C2-C20-alkynyl, optionally substituted C3-C2O-cycloalkyl, optionally substituted C6-C14-aryl, optionally substituted C5-C14-heteroaryl, an optionally substituted acyl group, or an optionally substituted carboxylate group, wherein the optional substituents are hydroxyl, halo or C1-C6-alkyl and wherein one or more of the carbon atoms in the alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heteroaryl, acyl or carboxylate groups of R5 and/or R6 is optionally replaced with a heteroatom selected from the group consisting of O, S, N, P and Si, which, where possible, is optionally substituted with one or more groups;
• and
• R7 represents a hydrogen atom, optionally substituted C1-C20-alkyl, optionally substituted C2-C2O-alkenyl, optionally substituted C2-C20-alkynyl, optionally substituted C3-C20-cycloalkyl, optionally substituted C6-C14-aryl, optionally substituted C5-C14-heteroaryl, wherein the optional substituents are hydroxyl, halo or C1-C6-alkyl, an ORc group or an NRc2 group, wherein the optional substituents of R7 are halogen atoms, ORc, or NRc2 groups, in which Rc is a hydrogen atom, a C1-C20-alkyl, C3-C20-cycloalkyl, C6-C14-aryl or C2-C20-alkenyl group.