1: trimethyl sulfoxonium chloride With potassium tert-butylate in tetrahydrofuran T=60°C; 2 h; 2: With water in tetrahydrofuran T=0°C; 5 h; 3: N-carbobenzyloxy-L-alanine methyl ester in tetrahydrofuran T=0°C; 4 h; Reagent/catalyst;
参考文献
European Journal of Organic Chemistry, , # 20 p. 4238 - 4241