[(3R,4S,5R,6S)-4,5-diacetyloxy-6-[3-cyano-4-(4-methoxyphenyl)-6-methyl-5-(phenylcarbamoyl)pyridin-2-yl]sulfanyloxan-3-yl] acetate 在
甲醇 、
氨 作用下,
以80%的产率得到5-cyano-4-(4-methoxyphenyl)-2-methyl-N-phenyl-6-[(2S,3R,4S,5R)-3,4,5-trihydroxyoxan-2-yl]sulfanylpyridine-3-carboxamide