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) can be used as a medicament.
The invention relates to CB2 agonists of formula (I) wherein R
1
to R
4
are defined as in the description and in the claims. The compound of formula (I) can be used as a medicament.