(3R)-3-[(2S)-3-oxo-4-aza-1-azoniatricyclo[7.3.1.05,13]trideca-1(12),5,7,9(13),10-pentaen-2-yl]-1-phenylpyrrolidine-2,5-dione;2,2,2-trifluoroacetate 在
高氯酸 作用下,
以77%的产率得到(3α,3'α)-3-(2,5-dioxo-1-phenylpyrrolidin-3-yl)-2,3-dihydro-2-oxo-1H-1,3aλ
5-diazaphenalen-3a-ium perchlorate