A process of making Roxadustat of the following formula (I): comprising converting a compound of formula (VI): to Roxadustat, wherein R is a C1-C20 alkyl group, and PG is a protective group.
制备下述分子式(I)的Roxadustat的方法包括将分子式(VI)的化合物转化为Roxadustat,其中R为C1-C20烷基基团,
PG为保护基。