Ethyl 4-hydr­oxy-2,6-diphenyl-5-(phenyl­sulfan­yl)pyridine-3-carboxyl­ate and ethyl 2,6-bis­(4-fluoro­phen­yl)-4-hydr­oxy-5-(4-methyl­phenyl­sulfan­yl)pyridine-3-carboxyl­ate: supra­molecular aggregation through C—H...O, C—H...F and C—H...π inter­actions

The title polysubstituted pyridines, ethyl 4-hydroxy-2,6-diphenyl-5-(phenylsulfanyl)pyridine-3-carboxylate, C₂₆H₂₁NO₃S, (I), and ethyl 2,6-bis(4-fluorophenyl)-4-hydroxy-5-(4-methylphenylsulfanyl)pyridine-3-carboxylate, C₂₇H₂₁F₂NO₃S, (II), adopt nearly planar structures. The crystal structure of (I) is stabilized by inter­molecular C—H...O and C—H...π inter­actions. The C—H...O hydrogen bonds generate rings of motifs R₂²(14) and R₂²(20). The crystal structure of (II) is stabilized by inter­molecular C—H...F and C—H...π inter­actions. The C—H...F bond generates a linear chain of motif C(14). In addition, in (I) and (II), intra­molecular O—H...O inter­actions generating a graph-set motif S(6) are found. No significant aryl–aryl or π–π inter­actions exist in these structures.