2-(4-fluorophenyl)-N-methyl-N-phenylethynesulfonamide 、
{[2-((4R,6R)-6-tert-Butoxycarbonylmethyl-2,2-dimethyl-[1,3]dioxan-4-yl)-ethyl]-isobutyryl-amino}-(4-fluoro-phenyl)-acetic acid 在
乙酸酐 作用下,
以
甲苯 为溶剂,
反应 2.0h,
以76%的产率得到tert-butyl 2-[(4R,6R)-6-[2-[2,3-bis(4-fluorophenyl)-4-[methyl(phenyl)sulfamoyl]-5-propan-2-ylpyrrol-1-yl]ethyl]-2,2-dimethyl-1,3-dioxan-4-yl]acetate