(1R,2S,4aR,5R,6S,8aS)-5-hydroxy-2-[(1E,3E,5S,6R,7Z,12R)-12-hydroxy-7-methoxycarbonyl-6-methoxymethoxy-5-methyldeca-1,3,7-trienyl]-1,3,6-trimethyl-1,2,4a,5,6,7,8a-octahydronaphthalene-1-carboxylic acid

(4R)-4-benzyl-3-[(2R,3R,4E,9R)-4-(t-butyldimethylsilyloxy)methyl-9-(t-butyldiphenylsilyloxy)-3-methoxymethoxy-2-methyldec-4-enoyl]oxazolidin-2-one

(+)-(R)-1-iodo-4-(t-butyldiphenylsilyloxy)-pentane