乙醚

α-bromomercury acetaldehyde

5-hydroxy-1-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-6-(1-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-methyl-2-oxo-1,2-dihydropyrimidin-4-yl)-5-methyldihydropyrimidine-2,4(1H,3H)-dione

4-bromo-1,1,1-triphenyl-but-2t-ene

草酸