(1R*,5S*,10bR*)-5-ethyl-1,2,3,3a,4,5,6,6a-octahydro-1-methyl-3-propionyl-3,3a,5a-triazapentaleno[3a,3-a]inden-2,6(3H,5aH)-dione 在
一水合肼 作用下,
以
乙醇 为溶剂,
反应 0.25h,
以77%的产率得到(Z)-exo-5-ethyl-4,5-dihydro-2-hydroxy-1-methylpyrazolo[1,5-d]benzo[f][1,4]diazocin-7(6H)-one