“…Our method relies on the assumption that similarly shaped molecules pack in crystalline lattices in similar ways. For example, -hydroxy--methyl--phenylbutyramide (CSD entry CERNIW: Zukerman-Schpector et al, 1984) and its structural analogue 5-bromo-1-(4-fluorophenyl)-1,3-dihydroisobenzofuran (CSD entry MEHJAL: Harrison et al, 2006), which is the 773rd ranked shape match, are structures that have both molecular shape similarity and crystal packing similarity. Chemically, these two molecules are quite distinct (Fig.…”