2-Aza-bicyclo[2.2.1]heptane-2,3-dicarboxylic acid 3-(2-{7-[2-(1-tert-butoxycarbonyl-pyrrolidine-2-carbonyloxy)-acetyl]-dibenzothiophen-3-yl]-2-oxo-ethyl) ester 2-tert-butyl ester (HCID 67971683)|化工社