Iodine → HCID 71746453, compound

Participants

Reaction Conditions

Reaction Steps

285 mg (0.68 mmol) of 4-amino-2-[1-(2-fluorobenzyl)-1,4,5,6-tetrahydrocyclopenta[c]pyrazol-3-yl]-5,5-dimethyl-5,7-dihydro-6H-pyrrolo[2,3-d]pyrimidin-6-one were initially charged in absolute dimethoxyethane, and 800 mg (6.83 mmol) of isopentyl nitrite, 87 mg (0.34 mmol) of iodine, 39 mg (0.21 mmol) of copper(I) iodide and 177 mg (0.68 mmol) of caesium iodide were added. The mixture was stirred at 100° C. for 40 min. The mixture was concentrated on a rotary evaporator, and the residue was taken up in dichloromethane and washed with 5% aqueous sodium thiosulphate solution and saturated aqueous sodium chloride solution. The organic phase was dried over sodium sulphate, concentrated and purified by means of preparative HPLC (eluent: acetonitrile/water with 0.1% acetic acid, gradient 20:80→100:0). 148 mg (40% of theory) of the target compound were obtained.

Provenance & Evidence