Bis(2-amino-5-benzyl-3-eth­oxy­carbonyl-4,5,6,7-tetra­hydro­thieno[3,2-c]pyridin-5-ium) bis­(4-meth­oxy­phen­yl)di­phos­phon­ate

The asymmetric unit of the title salt, 2C₁₇H₂₁N₂O₂S⁺·C₁₄H₁₄O₇P₂²⁻, contains half of a centrosymmetric bis­(4-meth­oxy­phen­yl)di­phospho­nate anion and one 2-amino-5-benzyl-3-eth­oxy­carbonyl-4,5,6,7-tetra­hydro­thieno[3,2-c]pyri­din-5-ium cation. In the anion, the O atoms of the di­phospho­nate group are disordered over two positions with equal occupancies. In the cation, the ethyl group is disordered over two orientations with a refined occupancy ratio of 0.753 (5):0.247 (5), and the tetra­hydro­pyridinium ring adopts a distorted half-chair conformation. In the crystal, the ions are linked by C—H...O, N—H...O and C—H...S hydrogen bonds into a three-dimensional network.

N′-[(E)-(Furan-2-yl)methyl­idene]-2-[4-(2-methyl­prop­yl)phen­yl]propano­hydrazide

In the title mol­ecule, C₁₈H₂₂N₂O₂, the furan and benzene rings form a dihedral angle of 70.17 (14)°. In the crystal, strong N—H...O and weak C—H...O hydrogen bonds link the mol­ecules into chains running parallel to [010].