3-[(1S,5S,6R,8S)-5-methyl-9-methylene-4-oxotricyclo[6.2.2.0(1,6)]-dodec-2-en-5-yl]propionic acid 、
3-amino-5-chloro-2,4-dihydroxybenzoic acid 在
三乙胺 、
Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 55.0h,
以27%的产率得到5-chloro-2,4-dihydroxy-3-[3-[(1S,5S,6R,8S)-5-methyl-9-methylidene-4-oxo-5-tricyclo[6.2.2.01,6]dodec-2-enyl]propanoylamino]benzoic acid