5,5-dimethoxypent-2-yn-1-ol

(2E,6Z)-7-Methoxy-hepta-2,6-dien-4-ynal

(2E,4E,6E,8E)-9-Methoxy-nona-2,4,6,8-tetraenal

(Z)-5-Methoxy-pent-4-en-2-ynal

(2E,4E,8Z)-9-Methoxy-nona-2,4,8-trien-6-ynal