1. (E,4E)-4-(4,4-二甲基戊-2-亚炔基)戊-2-烯-1,5-二醇

(E,4E)-4-(4,4-二甲基戊-2-亚炔基)戊-2-烯-1,5-二醇

(E,4E)-4-(4,4-dimethylpent-2-ynylidene)pent-2-ene-1,5-diol

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