HCID 135813645, compound → HCID 135813641, compound

Participants

Reaction Steps

The above amine (350 mg, 1.6 mmol) was hydrogenated over platinum oxide (30 mg) in MeOH (200 mL) at 60 psi for 4 h. The mixture was filtered through diatomaceous earth and the solvent evaporated, to give 6-amino-5-methylaminoquinazolin-4-one, which was immediately suspended in EtOAc (20 mL) and THF (10 mL). A solution of 2,6-dichlorophenylisothiocyanate (340 mg, 1.67 mmol) in EtOAc (5 mL) was added, and the mixture stirred for 16 h. The reaction mixture was concentrated to half the volume, filtered, and the solid washed with EtOAc to yield the thiourea (400 mg, 64% over 2 steps.)

Provenance & Evidence