diethyl-1,4-dihydro-2,6-dimethyl-3,5-pyridine dicarboxylate; benzoic acid; (S)-2-(diphenyl(trimethylsilyloxy)methyl)pyrrolidine in chloroform T=-20°C; 63 h; Title compound not separated from byproducts;
1: With methyl-diethoxy-silane; Rh<(S,S)-Phebox>(OAc)2(aq) in toluene T=30°C; 1 h; 2: With potassium fluoride; tetrabutyl ammonium fluoride in tetrahydrofuran; methanol; toluene Further stages.;
