The disclosure relates to borneol derivatives of general formula (I) wherein: R represents a phenyl residue optionally substituted by halogen atoms, C1-C4 alkyl groups, C1-C4 alkoxy groups, C1-C6 alkoxycarbonyl groups or C1-C8 acyloxy groups; R stands for a hydrogen atom, a C1-C4 alkyl group, substituted aryl, a C1-C6 alkoxycarbonyl group or a C1-C8 acyl group; R stands for a hydrogen atom, a C1-C4 alkyl group, a C1-C4 acyl group or a tri-C1-C4 alkylsilyl group; R and R represent a hydrogen atom, a C1-C4 alkyl residue or a phenyl residue optionally substituted by halogen atoms, C1-C4 alkyl group, C1-C9 alkoxy groups, C1-C4 alkoxycarbonyl groups or C1-C8 acyloxy groups; R and R stand for a hydrogen atom, hydroxy group or a C1-C8 acyloxy group, or together represent a carbon-carbon bond or oxygen atom; or R and R and/or R and R respectively stand together for a carbonyl group, a C1-C4 alkylidene group or if required an oxirane group substituted by a C1-C3 alkyl group. Also disclosed are the salts of these derivatives with physiologically tolerable acids, their alpha -, beta - or gamma -cyclodextrin clathrates and compounds of general formula (I) encapsulated in liposomes.