“…34 20 White solid; purification by column chromatography (n-hexane/TBME 9.8/0.2), 73% yield (111.4 mg); m.p. : 147-148 °C (EtOAc) (Lit: 36 20 White solid; purification by column chromatography (n-hexane/TBME 9.8/0.2), 83% yield (109.7 mg); m.p. : 147-148 °C (EtOAc) (Lit: 38 39 Yellow oil; purification by column chromatography (n-hexane/TBME 9.5/0.5), 87% yield (128.…”