This suggests that the researchers have developed a method for introducing amino (NH2) groups into organic compounds without using solvents or requiring chromatography as a purification step. Solvents and chromatography are common in many chemical reactions but can be environmentally unfriendly and time-consuming, so a "solvent- and chromatography-free" method would be considered more efficient and environmentally friendly.
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Quinazoline, 4-(1H-imidazol-1-yl)-2-phenyl-
