1: tert-butyl N-(methoxycarbonyl)-L-prolinate With trimethylsilyl iodide in dichloromethane 2.5 h; RefluxDarkness; 2: (9H-Fluoren-9-yl)-methyl chloroformate With sodium hydrogencarbonate in tetrahydrofuran; water T=0 - 20°C;
参考文献
Chemistry - A European Journal, , vol. 17, # 43 p. 12037 - 12044