Ethyl 5-methyl-7-phenyl-1,2,4-triazolo[4,3-a]pyrimidine-6-carboxyl­ate

In the title compound, C₁₅H₁₄N₄O₂, the triazolo­pyrimidine ring system is almost planar (r.m.s. deviation = 0.02 Å) and the phenyl ring is inclined to its mean plane by 42.45 (9)°. The carboxyl group is inclined to the triazolo­pyrimidine ring mean plane by 57.8 (3)°. In the mol­ecule, there is a short C—H...O contact involving the carbonyl O atom and an H atom of the adjacent methyl substituent. In the crystal, neighbouring mol­ecules are linked by C—H...O hydrogen bonds, forming chains propagating along [010]. There are also weak π–π inter­actions present involving the pyridine and phenyl rings of neighbouring chains [inter­centroid distance = 3.8580 (16) Å].