HCID 14851960, compound → 6(5H)-Phenanthridinone

Participants

Reaction Steps

The title compound was prepared by reacting 4-(2-chlorophenyl)-2-iodo-9-methyl-6H-thieno[3,2-f]1,2,4]triazolo[4,3-a][1,4]diazepine with 3.8-dichloro 5-(2-propynyl)-6(5H)-phenanthridinone under the conditions used in Example 37, but at the end, the reaction mixture was heated for minutes at 90°-95°. The product was isolated by chromatography over the 50-fold amount of silica gel using tetrahydrofuran/hexane 4:1 for elution. Crystallization of the combined clean fractions from tetrahydrofuran/ethyl acetate gave colorless crystals of 3,8-dichloro-5-{3-[4-(2-chlorophenyl)-9-methyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a]1,4]diazepin-2-yl]-2-propynyl}-6(5H)-phenanthridinone with m.p. 218°-220°.

Provenance & Evidence