A hydantoin derivative represented by formula (I):
wherein the all symbols are defined in the disclosure. The hydantoin derivative has an inhibitory activity on metalloprotease and hence is useful as analgesic and cardiovascular drug.
Uncatalyzed, green aza-Michael addition of amines to dimethyl maleate
作者:Giovanna Bosica、Anthony John Debono
DOI:10.1016/j.tet.2014.06.124
日期:2014.9
Dimethylmaleate was found to be a very reactive and selective acceptor for the aza-Michael addition in comparison to other commonly used electron-deficient alkenes. It reacts efficiently with a variety of aliphatic amines in complete absence of any catalyst and solvent at room temperature. Under these environmentally-friendly conditions, high yields of selectively mono-adducts were obtained within