反应详情

The title compound was prepared from 1-(4-chloro-2-fluorobenzyl)-5-(4-hydroxyphenyl)pyridin-2(1H)-one (1 eq, 0.60 mmol, 0.20 g, Example 20 Step 2) and tert-butyl 2-hydroxyethylcarbamate (1.5 eq, 0.90 mmol, 0.10 g) according to the procedure described for Example 25 Step 2. The crude product was purified by crystallization in pentane/Et2O followed by silica gel chromatography (AIT Flashsmart prepacked column 25 g SiO2, CH2Cl2/AcOEt 80/20) to afford tert-butyl 2-(4-(1-(4-chloro-2-fluorobenzyl)-6-oxo-1,6-dihydropyridin-3-yl)phenoxy)ethylcarbamate (0.40 mmol, 0.19 g, 66%) as a yellow oil.

1. customThe crude product was purified by crystallization in pentane/Et2O