(2S)-3-(4-Amino-3-nitrophenyl)-2-(9H-fluoren-9-ylmethoxycarbonylamino)propanoic acid dichloromethane disolvate

The title compound, C24H21N3O6 center dot 2CH(2)Cl(2), crystallizes with two independent molecules in the asymmetric unit, each with a different conformation. In the crystal structure, molecules form two-dimensional sheets in the ab plane due to a combination of O-H center dot center dot center dot O and N-H center dot center dot center dot O hydrogen bonds. Only edge-to-face stacking interactions are observed between fluorenyl aromatic groups of adjacent sheets. Solvent molecules are located within the intermolecular voids along the b axis and fill the spaces between carbamate linkages or lie between the fluorenyl aromatic groups.