11-(4-Methyl-2,6,7-trioxa-bicyclo[2.2.2]oct-1-yl)-undeca-4,7-diyne-1,2-diol

(4Z,7Z)-11-(4-Methyl-2,6,7-trioxa-bicyclo[2.2.2]oct-1-yl)-undeca-4,7-diene-1,2-diol