(4S,9R,10S,15R,16S)-9,15-dihydroxy-4,10,16-trimethyl-1,5,11-trioxacyclohexadeca-7,13-diene-2,6,12-trione

(4S)-4-(tert-butyldimethylsilyloxy)pent-1-en-3-yl ethyl allylphosphonate

diethyl (S,1Z,3E)-5-(tert-butyldimethylsilyloxy)hexa-1,3-dienylphosphonate

(2S,3R)-3-(methoxymethoxy)pent-4-ene-2-ol

(R)-3-(methoxymethoxy)pent-4-en-2-one