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 receptor agonist for use in the treatment of several disorders, such as pain, atherosclerosis and glaucoma.
本发明涉及一种化合物,其
化学式为(I),其中R1至R4的定义如描述和权利要求书中所述。该化合物是CB2受体激动剂,可用于治疗多种疾病,如疼痛,动脉粥样硬化和青光眼。