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 imides Selective inhibitors of hepatitis C virus NS3 serine protease Stereoselective addition of imides to alkynes Reactant for synthesis of: Selective angiotensin II AT2 receptor agonists with reduced CYP 450 inhibition N-chlorohydantoins P2X7 receptor antagonists