Dimethylformamide → HCID 178457959, compound

Participants

Reaction Conditions

Reaction Steps

N-amidino-3,5-diamino-6-chloro-2-pyrazinecarboxamide (4.58 g., 0.02 mole) dissolved in N,N-dimethylformamide (120 ml.) is treated dropwise with propylisocyanate (1.87 g., 0.022 mole) over a 10 min. period at 90° C. The solution is heated at 90° C. for 1 hour, filtered and poured into water (150 ml.) to precipitate 3,5-diamino-6-chloro-N-{[ (propylaminocarbonyl)amino]aminomethyl-}-2-pyrazinecarboxamide which on recrystallization from n-propanol gives 3.14 g. melting at 220°-221° C.

Provenance & Evidence