Abstract
In the first of the title compounds, (2S)-2-(1-oxo-1H-2,3-dihydroisoindol-2-yl)pentanoic acid, C13H15NO3, prepared from l-norvaline, a hydrogen-bonded network is formed in the solid state through O—H⋯O=C, C—H⋯O=C and C—H⋯πarene intermolecular interactions, with shortest O⋯O, C⋯O and C⋯centroid distances of 2.582 (13), 3.231 (11) and 3.466 (3) A, respectively. In the l-valine derivative, (2S)-3-methyl-2-(1-oxo-1H-2,3-dihydroisoindol-2-yl)butanoic acid, C13H15NO3, O—H⋯O=C and Carene—H⋯O=C intermolecular interactions generate a cyclic R{_2^2}(9) motif through cooperativity, with shortest O⋯O and C⋯O distances of 2.634 (3) and 3.529 (5) A, respectively. Methylene C—H⋯O=Cindole interactions complete the hydrogen bonding, with C⋯O distances ranging from 3.283 (4) to 3.477 (4) A.
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