(1R,2S,5R)-5-Methyl-2-[1-methyl-1-((1R,5R,6S,7S)-6-methyl-10-oxa-3-aza-tricyclo[5.2.1.01,5]dec-8-en-3-yl)-ethyl]-cyclohexanol

N-(8-mentholyl)-(3aS,6S,7aS)-3a,6-epoxy-3a,6,7,7a-tetrahydroisoindoline

N-(8-mentholyl)-(3aR,6R,7aR)-3a,6-epoxy-3a,6,7,7a-tetrahydroisoindoline

N-(8-mentholyl)-(3aS,6S,7aS)-3a,6-epoxy-7a-methyl-3a,6,7,7a-tetrahydroisoindoline

(1R,2S,5R)-5-Methyl-2-[1-methyl-1-((1R,5R,7R)-5-methyl-10-oxa-3-aza-tricyclo[5.2.1.01,5]dec-8-en-3-yl)-ethyl]-cyclohexanol