label: (2S)-2-(9H-FLUOREN-9-YLMETHOXYCARBONYLAMINO)-6-((2-METHYLPROPAN-2-YL)OXYCARBONYL-PROPAN-2-YLAMINO)HEXANOIC ACID
label_lc: (2s)-2-(9h-fluoren-9-ylmethoxycarbonylamino)-6-((2-methylpropan-2-yl)oxycarbonyl-propan-2-ylamino)hexanoic acid