英文名称
2-[[2-carboxy-2-[[3-carboxy-2-[[2-carboxy-2-[[3-carboxy-2-[[3-carboxy-2-[[4-[[(8R,9S,13S,14S,17S)-3-hydroxy-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-17-yl]oxy]-4-oxobutanoyl]amino]propanoyl]amino]propanoyl]amino]acetyl]amino]propanoyl]amino]acetyl]amino]butanedioic acid