(1R,4S,5R)-4-benzyloxy-5-methoxy-3-methyl-cyclopent-2-enol

(3R,4S,5R)-3-Benzyloxy-4-methoxy-5-vinyl-dihydro-furan-2-one

(3R,4R,5R)-3-benzyloxy-5-(tert-butyl-dimethyl-silanyloxy)-4-methoxy-hept-6-en-2-one

(3R,4R,5R)-3-benzyloxy-5-(tert-butyl-dimethyl-silanyloxy)-4-methoxy-2-methyl-hepta-1,6-diene

5,6-dideoxy-1,2-O-isopropylidene-3-O-methyl-alpha-D-xylo-hex-5-enofuranose