4-氟溴苄 、
tert-butyl (5-hydroxy-4,6-dioxo-2,4,6,7,8,8a-hexahydro-1H-3,7,8b-triazaacenaphthylen-2-yl)methylcarbamate 在
potassium hydride 作用下,
以
四氢呋喃 为溶剂,
以52%的产率得到cis tert-butyl [7-(4-fluorobenzyl)-5-hydroxy-4,6-dioxo-2,4,6,7,8,8a-hexahydro-1H-3,7,8b-triazaacenaphthylen-2-yl]methylcarbamate