title: Ethyl 2-amino-4-(3-nitro-phen-yl)-4H-1-benzothieno[3,2-b]pyran-3-carboxyl-ate.
abstract: The mol-ecule of the title compound, C20H16N2O5S, is built up by one fused five-membered and two fused six-membered rings linked to eth-oxy-carbonyl and 3-nitro-phenyl groups. The benzothieno-pyran ring system is nearly planar (r.m.s deviation = 0.0392 Å) and forms a dihedral angle of 86.90 (6)° with the aromatic ring of the nitro-benzene group. In the crystal, mol-ecules are linked by N-H⋯O hydrogen bonds and by π-π inter-actions between the phenyl ring and the six-membered heterocyle [inter-centroid distance = 3.5819 (8) Å], forming a three-dimensional network.
authors.affiliation: Département de Chimie, Faculté des Sciences, Dhar Mehraz, BP 1796 Atlas, 30000 Fes, Morocco.
authors.forename: Mohamed
authors.initials: M
authors.lastname: Bakhouch
authors.affiliation: Département de Chimie, Faculté des Sciences, Dhar Mehraz, BP 1796 Atlas, 30000 Fes, Morocco.
authors.forename: Ghali
authors.initials: G
authors.lastname: Al Houari
authors.affiliation: Département de Chimie, Faculté des Sciences, Dhar Mehraz, BP 1796 Atlas, 30000 Fes, Morocco.
authors.forename: Mohamed
authors.initials: M
authors.lastname: El Yazidi
authors.affiliation: Laboratoire de Chimie du Solide Appliquée, Faculté des Sciences, Université Mohammed V-Agdal, Avenue Ibn Battouta, BP 1014, Rabat, Morocco.
authors.forename: Mohamed
authors.initials: M
authors.lastname: Saadi
authors.affiliation: Laboratoire de Chimie du Solide Appliquée, Faculté des Sciences, Université Mohammed V-Agdal, Avenue Ibn Battouta, BP 1014, Rabat, Morocco.
authors.forename: Lahcen
authors.initials: L
authors.lastname: El Ammari