(2R,3S,4S,5R,6S)-3,4,6-TRIHYDROXY-2-HYDROXYMETHYL-7,9-DIAZA-1-OXA-SPIRO[4,5]DECANE-10-ONE-8-THIONE;(2R,3S,4S,5R,6S)-3,4,5-Trihydroxy-2-hydroxymethyl-7,9-diaza-1-oxa-spiro[4,5]decane-10-one-8-thione
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