2-[(1R,2R,6S,7R)-3,5-dioxo-4-azatricyclo[5.2.1.02,6]dec-8-en-4-ylcarbamoyl]benzoic acid 、
3,6-endomethylene-1,2,3,6-tetrahydrophthalic anhydride 在
溶剂黄146 作用下,
以85%的产率得到(1R,2R,6S,7R)-4-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)-4-azatricyclo[5.2.1.0
2,6]dec-8-ene-3,5-dione