7-Benzyl-3-(4-chloro­phen­yl)-2-isobutyl­amino-5,6,7,8-tetra­hydro­pyrido[4′,3′:4,5]thieno[2,3-d]pyrimidin-4(3H)-one

In the title compound, C₂₆H₂₇ClN₄OS, the thienopyrimidine fused-ring system is close to coplanar (r.m.s. deviation = 0.0089 Å), with a maximum deviation of 0.0283 (17) Å for the N atom adjacent to the benzene ring. This ring system forms dihedral angles of 83.51 (3) and 88.20 (5)° with the adjacent benzyl and phenyl rings, respectively. In the crystal, N—H...Cl inter­actions and C—H...O hydrogen bonds are observed.

Poly[(μ₂-benzene-1,3-dicarboxyl­ato-κ²O¹:O³){μ₂-1,2-bis­[(1H-imidazol-1-yl)meth­yl]benzene-κ²N³:N^3′}zinc]

In the two-dimensional title coordination polymer, [Zn(C₈H₄O₄)(C₁₄H₁₄N₄)]_n, the Zn^II atom adopts a distorted tetra­hedral geometry, being ligated by two O atoms from two different benzene-1,3-dicarboxyl­ate dianions and two N atoms from two symmetry-related 1,2-bis­(imidazol-1-ylmeth­yl)benzene mol­ecules. The dihedral angles between the imidazole rings and the benzene ring in the neutral ligand are 76.31 (13) and 85.33 (15)°. The Zn^II atoms are bridged by dicarboxyl­ate ligands, forming chains parallel to the a axis, which are further linked by 1,2-bis­(imidazol-1-ylmeth­yl)benzene mol­ecules, generating a two-dimensional layer structure parallel to the ac plane. The crystal structure is enforced by intra­layer and inter­layer C—H...O hydrogen bonds.

7-Benzyl-3-(4-fluoro­phen­yl)-2-propyl­amino-5,6,7,8-tetra­hydro­pyrido[4′,3′:4,5]thieno[2,3-d]pyrimidin-4(3H)-one

In the title compound, C₂₅H₂₅FN₄OS, the thienopyrimidine fused-ring system is close to planar (r.m.s. deviation = 0.0089 Å), with a maximum deviation of 0.0261 (17) Å for the N atom adjacent to the benzene ring. This thienopyrimidine fused-ring system forms dihedral angles of 64.73 (3) and 81.56 (5)° with the adjacent benzyl and fluoro­phenyl rings, respectively. Inter­molecular N—H...F and C—H...F hydrogen bonding, as well as C—F...π inter­actions [F...centroid = 3.449 (3) Å; C—F...centroid = 91.87 (15)°], help to stabilize the crystal structure.

9-[(2-Meth­oxy­benz­yl)amino]-5-(3,4,5-trimeth­oxy­phen­yl)-5,5a,8a,9-tetra­hydro­furo[3′,4′:6,7]naphtho­[2,3-d][1,3]dioxol-6(8H)-one

In the title compound, C₃₀H₃₁NO₈, the tetra­hydro­furan ring and the six-membered ring fused to it both display envelope conformations, both having the same C atom as the flap. The dihedral angles between the benzene ring of the benzo[d][1,3]dioxole ring system and the other two benzene rings are 53.73 (3) and 83.30 (2)°. An intra­molecular N—H...O hydrogen bond is present. In the crystal, weak inter­molecular C—H...O hydrogen bonds link the mol­ecules into chains parallel to the c axis.