(11S,11aS)-8-Benzyloxy-10-(tert-butyloxycarbonyl)-7-methoxy-11-(tetrahydroxy-pyran-2-yloxy)-1,2,3,10,11,11a-hexahydro-5H-pyrrolo[2,1-c][1,4]benzodiazepine-5-one|Huagongshe