[(2R,3S,4S,5R,6S)-3,5-diacetyloxy-4-[6-[(2R,3S,4S,5R,6S)-3,5-diacetyloxy-2-(acetyloxymethyl)-6-naphthalen-2-ylsulfanyloxan-4-yl]oxyhexa-2,4-diynoxy]-6-naphthalen-2-ylsulfanyloxan-2-yl]methyl acetate 在
甲醇 、
sodium methylate 作用下,
以96%的产率得到(2R,3S,4S,5R,6S)-4-[6-[(2R,3S,4S,5R,6S)-3,5-dihydroxy-2-(hydroxymethyl)-6-naphthalen-2-ylsulfanyloxan-4-yl]oxyhexa-2,4-diynoxy]-2-(hydroxymethyl)-6-naphthalen-2-ylsulfanyloxane-3,5-diol