(R)-2-{2-[(S)-(2′-Benzoyloxy-1,1′-binaphthyl-2-yl)oxycarbonylamino]-3-phenylpropanamidomethyl}pyridinium picrate acetone solvate

Abstract

In the crystal structure of the title compound, C43H34N3O5+·C6H2N3O7−·C3H6O, the large dimension and shape of the cation are responsible for the elongation of the orthorhombic unit cell. The ions and acetone molecules are linked together by a system of hydrogen bonds involving an intermolecular hydrogen bond between one N atom of the cation and the O atom of acetone and two intermolecular hydrogen bonds between the cation N atoms and the O atoms of the picrate anion. No intramolecular hydrogen bonds exist in the structure. The dihedral angle between the two naphthalene ring systems is 76.16 (13)°. The chiral C atom has a known R configuration, but this cannot be confirmed from this X-ray analysis.