cyclo-{[(2S,3R,4R,6E,8E)-3-acetoxy-4-methyl-2-(methylamino)-6,8,10-undecatrienoyl]-L-2-aminobutyryl-N-methyl-glycyl-N-methyl-L-leucyl-L-valyl-N-methyl-L-leucyl-L-alanyl-D-alanyl-N-methyl-L-leucyl-N-methyl-L-leucyl-N-methyl-L-valyl} 在
甲醇 、
potassium carbonate 作用下,
反应 12.0h,
以75%的产率得到cyclo-{[(2S,3R,4R,6E,8E)-3-hydroxy-4-methyl-2-(methylamino)-6,8,10-undecatrienoyl]-L-2-aminobutyryl-N-methyl-glycyl-N-methyl-L-leucyl-L-valyl-N-methyl-L-leucyl-L-alanyl-D-alanyl-N-methyl-L-leucyl-N-methyl-L-leucyl-N-methyl-L-valyl}