methyl,spiro,furan,indol
Furan
64018-64-0(5S)-2-[2-O,3-O-Isopropylidene-5-O-(triphenylmethyl)-β-D-ribofuranosyl]-5-isoxazolidinecarboxylic acid methyl ester
64018-57-1(5R)-2-(2-O,3-O:5-O,6-O-Diisopropylidene-α-D-mannofuranosyl)-5-methyl-5-isoxazolidinecarboxylic acid methyl ester