7,8-dehydroiridotrial

(2R,3S,4S,5R,6S)-2-Hydroxymethyl-6-((1S,4aS,7aS)-4-hydroxymethyl-7-methyl-1,4a,5,7a-tetrahydro-cyclopenta[c]pyran-1-yloxy)-tetrahydro-pyran-3,4,5-triol