医药合成中间体;General description:1,5,5-Trimethylhydantoin (TMH) is a 1,5,5-trisubstituted hydantoin. Its mass spectrum has been recorded and analyzed. The density of TMH is 1.1318g/ml at 25°C.application:1,5,5-Trimethylhydantoin (1,5,5-Trimethyl-imidazolidine-2,4-dione) may be used to synthesize 3-bromomethyl-1,5,5-trimethylimidazolid-ine-2,4-dione.Reactant for:Z-selective hydroamidation of terminal alkynes with secondary amides and imidesSelective inhibitors of hepatitis C virus NS3 serine proteaseStereoselective addition of imides to alkynesReactant for synthesis of:Selective angiotensin II AT2 receptor agonists with reduced CYP 450 inhibitionN-chlorohydantoinsP2X7 receptor antagonists