O-(3-deoxy-L-erythro-hexulofuranosylic acid)-(2-3)-O-ribosyl-(1-1)-ethane-1,2-diol 在
methylating reagent 作用下,
生成 (4R,5S)-4-Methoxy-2-[(2R,3R,4R,5R)-4-methoxy-5-(2-methoxy-ethoxy)-2-methoxymethyl-tetrahydro-furan-3-yloxy]-5-methoxymethyl-tetrahydro-furan-2-carboxylic acid methyl ester