Crystal structures of (5<i>RS</i>)-(<i>Z</i>)-4-[5-(furan-2-yl)-3-phenyl-4,5-dihydro-1<i>H</i>-pyrazol-1-yl]-4-oxobut-2-enoic acid and (5<i>RS</i>)-(<i>Z</i>)-4-[5-(furan-2-yl)-3-(thiophen-2-yl)-4,5-dihydro-1<i>H</i>-pyrazol-1-yl]-4-oxobut-2-enoic acid
Acta crystallographica. Section E, Crystallographic communications