反应条件
1: 61 percent / LDA / tetrahydrofuran; hexane / -75 °C 2: 1.) trifluoroacetic acid; 2.) DOWEX 50 Wx 8 cation exchange resin / 1.) CH2Cl2, overnight; 2.) AcOH, 0.75 N HCl, 100 degC, 44 h View Scheme
参考文献
Tetrahedron, , vol. 44, # 17 p. 5277 - 5292
