CH2N2Pb → HCID 178484967, Verbindung

Beteiligte Stoffe

Reaktionsschritte

The reaction of N-methyl-N'-[3-((4-methyl-5-imidazolyl)methylthio)propyl]thiourea (5.9 g.) with lead cyanamide (17.5 g.) by a procedure similar to that described in Example 3(b) afforded N-cyano-N'-methyl-N"-[3-((4-methyl-5-imidazolyl)methylthio)propyl]-guanidine (0.91 g.) m.p. 156°-158°, following chromatography on silica gel with successive elution by chloroformethyl acetate (1:1), ethyl acetate and ethyl acetate isopropyl alcohol (5:1) and final recrystallisation from isopropyl alcohol-ether. (Found: C, 49.5; H, b 7.0; S, 12.0. C11H18N6S requires: C, 49.6; H, 6.8; S. 12.0).

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