英文名称: | urea, n-((5S)-2,3-di-o-acetyl-5-c-(((3-beta,20-beta)-11-oxo-20((((phenylmethyl) | a mino)carbonyl)amino)-30-norolean-12-en-3-yl)oxy)-4-o-((5S)-2,3,4-tri-o-ace ty | l-5-c-((((phenylmethyl)amino) carbonyl)amino)-beta-d-xylopyranosyl)-beta-l-xylo | pyranosyl)-n'-(phenylmeth yl)- | urea,n-((5S)-2,3-di-o-acetyl-5-c-(((3-beta,20-beta)-11-oxo-20((((phenylmethyl)amino)carbonyl)amino)-30-norolean-12-en-3-yl)oxy)-4-o-((5S)-2,3,4-tri-o-ace tyl-5-c-((((phenylmethyl)amino)carbonyl)amino)-beta-d-xylopyranosyl)-beta-l-xylopyranosyl)-n'-(p |
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