Crystal structure and Hirshfeld surface analysis of ethyl (3<i>E</i>)-5-(4-chlorophenyl)-3-{[(4-chlorophenyl)formamido]imino}-7-methyl-2<i>H</i>,3<i>H</i>,5<i>H</i>-[1,3]thiazolo[3,2-<i>a</i>]pyrimidine-6-carboxylate

Abstract

In the title mol-ecule, C₂₃H₂₀Cl₂N₄O₃S, the thia-zole ring is planar while the pyrimidine unit fused to it adopts a screw-boat conformation. In the crystal, thick sheets parallel to the <i>bc</i> plane are formed by N-H⋯N, C-H⋯N and C-H⋯O hydrogen bonds together with π-π inter-actions between the formamido carbonyl groups and the thia-zole rings. Hirshfeld surface analysis indicates that the most important contributions to the crystal packing are from H⋯H (30.9%), Cl⋯H/H⋯Cl (20.7%), C⋯H/H⋯C (16.8%) and O⋯H/H⋯O (11.4%) inter-actions.