Intermediate of Sitagliptin Phosphate (3R)-N-(tert-butoxycarbonyl)-3-amino-4-(2,4,5-trifluorophenyl) butanoic acid
Tert-butyl 2-[(4R,6S)-6-[(E)-2-[4-(4-fluorophenyl)-2-[methyl (methylsulfonyl)amino]-6-propan-2-ylpyrimidin-5-yl]ethenyl]-2,2-dimethyl-1,3-dioxan-4-yl]acetate