Squaramide-Catalyzed Michael Addition as a Key Step for the Direct Synthesis of GABAergic Drugs
作者:Radovan Šebesta、Eva Veverková、Stanislav Bilka、Rastislav Baran
DOI:10.1055/s-0035-1560420
日期:——
Enantioselective organocatalytic Michaeladditions serve as the key step in syntheses of chiral drugs based on γ-aminobutyric acid. The applicability of various squaramide catalysts for these Michael-type reactions has been assessed. Very good results in terms both activity and enantioselectivity were obtained in the Michaeladdition of dimethyl malonate to β-nitrostyrenes. On the other hand, a complementary