2,3-Dihydro-6-phenyl-7H-thiazolo(3,2-b)(1,2,4)triazin-7-on

1-[4-(乙酰基氧基)苯基]-3-溴-2-丙酮

3-hydroxy-5-oxocyclohex-3-ene-1-carboxylic acid

9-hydroxy-2-oxaspiro[4.5]dec-8-ene-1,7-dione

2-[hydroxy(methyl)phosphoryl]ethyl-methylphosphinic acid