反应详情

By a ring closure reaction, a detritylation reaction and purification in the same manner as in Example 1 using methyl 1-bromomethyl-6-[1-hydroxy-2-methyl-1-(1-trityl-1H-imidazol-4-yl)propyl]-2-naphthoate (0.62 g) and hydrazine monohydrate (0.35 ml), 8-[1-hydroxy-1-(1H-imidazol-4-yl)-2-methylpropyl]-2,3-dihydrobenzo[f]phthalazin-4(1H)-one (0.05 g) was obtained as a colorless amorphous solid and 8-[1-hydroxy-1-(1H-imidazol-4-yl)-2-methylpropyl]benzo[f]phthalazin-4(3H)-one (0.07 g) was obtained as colorless crystals.

1. customBy a ring closure reaction