label: 5'-O-(((2-decanoyl-amino-3-hydroxy-3-phenylpropyloxycarbonyl)amino)sulfonyl)-2',3'-O-isopropylideneuridine, (S)-isomer
label_lc: 5'-o-(((2-decanoyl-amino-3-hydroxy-3-phenylpropyloxycarbonyl)amino)sulfonyl)-2',3'-o-isopropylideneuridine, (s)-isomer