(2R,3R,4R,5R)-2,4-bis(methoxymethoxy)-4-(3,4-methylenedioxyphenyl)-3-pivaloyloxymethylbutanal

(4R,5R)-4-(tert-butyldiphenylsilyl)oxymethyl-5-(3,4-methylenedioxyphenyl)dihydro-3(2H)-furanone

(2S,3S,4S)-3-(tert-butyldiphenylsilyloxy)methyl-4-hydroxy-2-(3,4-methylenedioxyphenyl)tetrahydrofuran

(2R,3R,4S)-3-hydroxymethyl-4-methoxymethoxy-2-(3,4-methylenedioxyphenyl)tetrahydrofuran

(2R,3R,4S)-4-methoxymethoxy-2-(3,4-methylenedioxyphenyl)-3-pivaloyloxymethyltetrahydrofuran