merremoside b 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 0.5h,
以3 mg的产率得到methyl (11S)-11-[(2R,3R,4S,5R,6S)-5-[(2S,3R,4S,5R,6S)-3,4-dihydroxy-5-[(2S,3R,4S,5S,6S)-3-hydroxy-6-methyl-4-(2-methylpropanoyloxy)-5-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-2-yl]oxy-6-methyloxan-2-yl]oxy-3,4-dihydroxy-6-methyloxan-2-yl]oxyhexadecanoate