(2R,4R)-1-allyloxycarbonyl-4-tert-butyldimethylsilyloxy-2-[(2-cyanopyridin-4-yl)methyl]pyrrolidine

(2R,4R)-1-allyloxycarbonyl-4-tert-butyldimethylsilyloxy-2-[(2-carbamoylpyridin-4-yl)methyl]pyrrolidine