反应详情

The reaction was carried out similarly as described in the preparation of compound 102, using compound 121 (1.63 mmol). The crude product was purified by continuous gradient flash chromatography using EtOAc/petroleum ether (40-60) 50:50 to 100:0 as the eluent to afford the title compound as yellow syrup.

1. customThe crude product was purified by continuous gradient flash chromatography