HCID 15671294, compound → HCID 136110837, compound

Participants

Reaction Conditions

Reaction Steps

Compound from Example 3E (145 mg, 0.5 mmole) was slurried in 10 ml of concentrated HCl and heated at 75° C. for 1 hour with stirring. On initial heating, the compound dissolved, then a precipitate eventually formed. The slurry was evaporated to dryness in vacuo. The residue was initially soluble in water but formed a yellow-brown precipitate within a few minutes. The water was evaporated again and the residue was dried in vacuo for 3 hours to give the title compound as a brown solid, 125 mg, m.p. >300° C.

Provenance & Evidence