[(1S,2R,9R,10R,11S,12R)-10,11-dihydroxy-1,5-dimethylspiro[8-oxatricyclo[7.2.1.02,7]dodec-5-ene-12,2'-oxirane]-2-yl]methyl acetate 、
N-(3-azido-5-methoxyphenyl) N'-(carboxymethyl) urea 生成 [(1S,2R,9R,10R,11S,12R)-2-(acetyloxymethyl)-10-hydroxy-1,5-dimethylspiro[8-oxatricyclo[7.2.1.02,7]dodec-5-ene-12,2'-oxirane]-11-yl] 2-[(3-azido-5-methoxyphenyl)carbamoylamino]acetate