HCID 17800767, compound → HCID 21847700, compound

Participants

Reaction Steps

250 mg of [(6-(N-imidazolyl)-7-nitro-1,2,3,4-tetrahydro-2,3-dioxoquinoxalin-1-yl)methanephosphonic acid diethyl ester is heated in 3 ml of concentrated hydrochloric acid for 2.5 hours to 110° C. bath temperature. After concentration by evaporation, it is taken up in water, and the precipitated product is suctioned off. 100 mg of [6-(N-imidazolyl)-7-nitro-1,2,3,4-tetrahydro-2,3-dioxoquinoxalin-1-yl]methanephosphonic acid is obtained.

Provenance & Evidence