Carbon Disulfide → 3-(2-ethoxyethyl)-2-[[4-(2-isothiocyanatoethyl)-1-piperazinyl]methyl]-3H-imidazo[4,5-b]pyridine

Participants

Reaction Steps

To a stirred and cooled (-10° C.) mixture of 18 parts of carbon disulfide, 7.22 parts of N,N'-methanetetraylbis[cyclohexanamine] and 135 parts of tetrahydrofuran was added dropwise a solution of 12.9 parts of 4-[[3-(2-ethoxyethyl)-3H-imidazo[4,5-b]pyridin-2-yl]methyl]-1-piperazineethanamine in tetrahydrofuran. Upon complete addition, the temperature was allowed to reach room temperature. After stirring for 1 hour at room temperature, the mixture was evaporated, yielding 13.1 parts (100%) of 3-(2-ethoxyethyl)-2-[[4(2-isothiocyanatoethyl)-1-piperazinyl]methyl]-3H-imidazo[4,5-b]pyridine as a residue (compound 121)

Provenance & Evidence