methyl 3,7-anhydro-8-[(tert-butoxycarbonyl)amino]-2,8-dideoxy-D-gulo-D-glycero-octulonate 生成 (1R,6S,7R,8R,9S,10R,15S,16R,17R,18S,19R,24S,25R,26R,27S,28R,33S,34R,35R,36S)-7,8,9,16,17,18,25,26,27,34,35,36-dodecahydroxy-37,38,39,40-tetraoxa-3,12,21,30-tetrazapentacyclo[31.3.1.16,10.115,19.124,28]tetracontane-4,13,22,31-tetrone