1,3-DI-Boc-2-methylisothiourea → HCID 178491155, compound

Participants

Reaction Steps

To a mixture of 2-(trans-4-aminocyclohexylamino)-N-(3,4-dimethoxybenzyl)-5-nitrobenzamide (300 mg) and 1,3-bis(tert-butoxycarbonyl)-2-methyl-2-thiopseudourea (203 mg) in ethanol (20 mL) was added mercury(II) oxide (152 mg). The mixture was stirred for 2 hours at ambient temperature. The resultant precipitates were removed by filtration and the filtrate was evaporated in vacuo. The residue was purified by a silica gel column chromatography eluting with 2% methanol in chloroform. The obtained product was triturated with diisopropyl ether to give 2-{trans-4-[2,3-bis(tert-butoxycarbonyl)guanidino]cyclohexylamino}-N-(3,4-dimethoxybenzyl)-5-nitrobenzamide as yellow powders (432 mg).

Provenance & Evidence