2-Isopropyl-5-methyl­cyclo­hexyl quinoline-2-carboxyl­ate

In the title compound, C₂₀H₂₅NO₂, the cyclo­hexyl ring adopts a slightly disordered chair conformation. The dihedral angle between the mean planes of the quinoline ring and the carboxyl­ate group is 22.2 (6)°. In the crystal, weak C—H...N inter­actions make chains along [010].

2,5-Di­methyl­phenyl quinoline-2-carboxy­l­ate

In the title compound, C₁₈H₁₅NO₂, the dihedral angle between the mean planes of the quinoline ring system and the phenyl ring is 78.8 (1)°. The mean plane of the carboxyl­ate group is twisted from the mean planes of the quinoline ring system and phenyl ring by 1.5 (9) and 77.6 (4)°, respectively. In the crystal, mol­ecules are linked by weak C—H...O inter­actions, generating C(8) chains along [001]. Weak π–π stacking inter­actions are also observed [centroid–centroid separation = 3.6238 (12) Å].