A simple hydrogen-bonded chain in (3Z)-3-1-[(5-phenyl-1H-pyrazol-3-yl)amino]ethylidene-4,5-dihydrofuran-2(3H)-one, and a hydrogen-bonded ribbon of centrosymmetric rings in the self-assembled adduct (3Z)-3-1-[(5-methyl-1H-pyrazol-3-yl)amino]ethylidene-4,5-dihydrofuran-2(3H)-one–6-(2-hydroxyethyl)-2,5-dimethylpyrazolo[1,5-a]pyrimidin-7(4H)-one (1/1) | Publicación