cyclo[2,2-dimethyl-β-alanyl-(2S)-2-hydroxy-4-methylpentanoyl-(2E,5S,6R,7E)-8-[4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]phenyl]-5-hydroxy-6-methyl-2,7-octadienoyl-3-chloro-O-methyl-D-tyrosyl] 在
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
反应 0.5h,
以93%的产率得到pentanoic acid, 3-chloro-N-[(2E,5S,6R,7E)-5-hydroxy-8-(4-hydroxyphenyl)-6-methyl-1-oxo-2,7-octadienyl]-O-methyl-D-tyrosyl-2,2-dimethyl-β-alanyl-2-hydroxy-4-methyl, (3->1
5)-lactone, (2S)-