title: Crystal structure of ethyl 6-methyl-2-oxo-4-(3,4,5-tri-meth-oxy-phen-yl)-1,2,3,4-tetra-hydro-pyrimidine-5-carboxyl-ate.
abstract: In the title compound, C17H22N2O6, the di-hydro-pyrimidine ring adopts a flattened boat conformation. The dihedral angle between the benzene ring and the mean plane of the di-hydro-pyrimidine ring is 75.25 (6)°. In the crystal, mol-ecules are linked via pairs of N-H⋯O hydrogen bonds, forming inversion dimers with an R 2 (2)(8) ring motif which are linked through N-H⋯O and weak C-H⋯O hydrogen bonds. These, together with π-π ring inter-actions [centroid-centroid distance = 3.7965 (10) Å], give an overall three-dimensional structure.
authors.affiliation: Department of Physics, Idhaya College for Women, Kumbakonam-1, India.
authors.forename: J J
authors.initials: JJ
authors.lastname: Novina
authors.affiliation: Department of Physics, Kunthavai Naachiar Govt. Arts College (W) (Autonomous), Thanjavur-7, India.
authors.forename: G
authors.initials: G
authors.lastname: Vasuki
authors.affiliation: PG & Research Department of Chemistry, Jamal Mohamed College (Autonomous), Tiruchirappalli-20, India.
authors.forename: M
authors.initials: M
authors.lastname: Suresh
authors.affiliation: PG & Research Department of Chemistry, Jamal Mohamed College (Autonomous), Tiruchirappalli-20, India.
authors.forename: M Syed Ali
authors.initials: MS
authors.lastname: Padusha
keywords: centrosymmetric dimer; crystal structure; hydrogen bonds; pyrimidine
references.citation: Molecules. 2007 Jul 09;12(7):1341-51
references.pmid: 17909490
references.citation: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references.pmid: 18156677
references.citation: Acta Crystallogr D Biol Crystallogr. 2009 Feb;65(Pt 2):148-55
references.pmid: 19171970