Guanidine Hydrochloride → HCID 178513101, compound

Participants

Reaction Steps

To a solution of guanidine hydrochloride in anhydrous MeOH (1.5 ml) was added powder NaOEt (80 mg. 1.17 mmol). After 10 min stirring at room temperature, the reaction mixture was treated with tert-butyl [2-(2-furylmethyl)-5-phenyl-1H-pyrrol-1-yl]acetate. After 5 h stirring at 55° C., the reaction mixture was cooled and quenched with H2O (5 ml), diluted with EtOAc (15 ml). The organic layer was separated and the aqueous was extracted with EtOAc (2×15 ml). The combined organic extracts were washed with H2O (15 ml), brine (15 ml), dried (Na2SO4) and concentrated. The crude material was purified by chromatography (silica gel; EtOAc/2M NH3 in MeOH: 97/3) to give the titled compound (73 mg, 57%) as a solid: mp 80-82° C.; MS (−) ES, 321 (M−H)−.

Provenance & Evidence