Four Natural Compounds were Separated from Folium Isatidis: Crystal Structures and Antibacterial Activity.

Abstract

Four natural compounds were obtained by concentrating, separating and purifying from the Folium Isatidis. These natural compounds had been characterized by elemental analysis, IR spectrum, NMR and single-crystal X-ray diffraction analysis. The results show that these natural compounds are 4(3H)-quinazolinone (I), benzoyleneurea (II), methyl 4-quinazoline-2… (More)
DOI: 10.1002/cbdv.201800152

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