2-fluoro-4-[[5-[[[(3R)-1-[(3-hydroxyphenyl)-phenylmethyl]-2-oxopyrrolidin-3-yl]amino]methyl]imidazol-1-yl]methyl]benzonitrile 在
caesium carbonate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以83%的产率得到(6R)-27-oxo-2-phenyl-20-oxa-3,7,11,13-tetraazapentacyclo[19.3.1.1^{3,6}.1^{15,19}.0^{9,13}]heptacosa-1(24),9,11,15(26),16,18,21(25),22-octaene-18-carbonitrile