Ethyl 2-(5-methyl-1,2,4-triazolo[1,5-a]pyrimidin-7-yl)pent-4-enoate

摘要

In the title mol-ecule, C 13 H 16 N 4 O 2 , the fused triazolo-pyrimidine ring system is planar. In the crystal, inversion-related C—H?O hydrogen bonds form dimers that are linked into chains extending along the a -axis direction by inversion-related C—H? π (ring) inter-actions.