(10-((1S)-α-phenylethyl)-6-oxa-10-azatricyclo[6.3.3.01,7]-tetradec-3-en-8-yl)methyl 2-aminobenzoate 、
甲基琥珀酸酐 反应 4.0h,
以55%的产率得到(10-((1S)-α-phenylethyl)-6-oxa-10-azatricyclo[6.3.3.0
1,7]-tetradec-3-en-8-yl)methyl 2-(3-methyl-2,5-dioxopyrrolidin-1-yl)benzoate