methyl (3R,4R,5S)-3-(tert-butyldimethylsilyloxy)-5-hydroxy-4-(p-methoxybenzyloxy)hept-6-enoate

(S)-hept-6-en-2-yl (3R,4R,5S)-5-benzyloxy-3-(tert-butyldimethylsilyloxy)-4-(p-methoxybenzyloxy)hept-6-enoate