(E)-6-(Furan-2-ylmethylidene)-6,7,8,9-tetrahydropyrido[2,1-b]quinazoline-11-thione

A new quinazolinthione derivative was synthesized, and X-ray diffraction analysis proved the E configuration for the exocyclic double bond in the molecule.

In the crystal, molecules are linked by C-HÁ Á Á(furan) interactions between molecules related by the c glide plane of space group Cc, forming zigzag chains propagating along the [001] direction (Table 1, Fig. 2).
Cg is the centroid of the furan ring (O/C2-C16).

Figure 1
The molecular structure of title compound with the atom labelling. Displacement ellipsoids are drawn at the 50% probability level.

Refinement
Crystal data, data collection and structure refinement details are summarized in Table 2.

Special details
Refinement. All C-bound H atoms were positioned geometrically and refined using a riding model, with C-H = 0.93-0.97 Å and U iso (H) = 1.2U eq (carrier C).

Special details
Refinement. All C-bound H atoms were positioned geometrically and refined using a riding model, with C-H = 0.93-0.97 Å and U iso (H) = 1.2U eq (carrier C).