The invention relates to a compound of formula (I) wherein R
1
to R
4
are defined as in the description and in the claims. The compound of formula (I) is a CB2 agonist and can be used as an active ingredient in a medicament.
The invention relates to a compound of formula (I) wherein R1 to R4 are defined as in the description and in the claims. The compound of formula (I) is a CB2 agonist and can be used as an active ingredient in a medicament.