prop-2-yn-1-yl 2-amino-6-(4-aminophenyl)-4-(2-oxo-2-(prop-2-yn-1-yloxy)ethyl)-4H-chromene-3-carboxylate
prop-2-yn-1-yl 2-amino-6-(4-aminophenyl)-4-(2-oxo-2-(prop-2-yn-1-yloxy)ethyl)-4h-chromene-3-carboxylate