2,5-dioxo-pyrrolidine 4'-octyloxy-biphenyl-4-carboxylate 、 (3S,6S,9S,11R,15S,18S,24S,25S,26S)-18-amino-11,20,21,25-tetrahydroxy-15-[(1R)-1-hydroxyethyl]-6-[(1R)-1-hydroxy-2-(4-hydroxyphenyl)ethyl]-3-(hydroxymethyl)-26-methyl-1,4,7,13,16,22-hexazatricyclo[22.3.0.09,13]heptacosane-2,5,8,14,17,23-hexone 在
N,N-二异丙基乙胺 、
水 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 20.0h,
以98.2%的产率得到1-[4,5-dihydroxy-N-2-[[4'-(octyloxy)[1,1'-biphenyl]-4-yl]carbonyl]-L-ornithine]-4-[4-(4-hydroxyphenyl)-L-threonine]-5-L-serine echinocandin B