[(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4,15-diacetyloxy-1,9-dihydroxy-12-[2-(4-methoxyphenyl)acetyl]oxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-2-yl] benzoate 、
4-benzoylcinnamic acid 在
4-二甲氨基吡啶 、
1-(3-二甲基氨基丙基)-3-乙基碳二亚胺 作用下,
以
二氯甲烷 为溶剂,
生成 [(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4,15-diacetyloxy-9-[(E)-3-(4-benzoylphenyl)prop-2-enoyl]oxy-1-hydroxy-12-[2-(4-methoxyphenyl)acetyl]oxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-2-yl] benzoate