Carbamimidoylazanium Chloride → HCID 178422545, compound

Participants

Reaction Conditions

Reaction Steps

N-[(2-Isobutyl-5-methyl-3-oxo-2,3-dihydro-1H-isoindol-1-yl)acetyl]guanidine is prepared as described in Example 1, starting with 1.75 g of potassium tert-butoxide, 1.78 g of guanidinium chloride and 0.9 g of ethyl (2-isobutyl-5-methyl-3-oxo-2,3-dihydro-1H-isoindol-1-yl)acetate. The reaction mixture is stirred at a temperature in the region of 20° C. for 40 hours and is then poured into 150 cm3 of water and extracted with 3 times 150 cm3 of ethyl acetate. The organic extracts are combined, washed with 3 times 50 cm3 of water, dried over magnesium sulphate, filtered and then concentrated to dryness under reduced pressure (2.7 kPa) at a temperature in the region of 40° C. The residue is taken up in diethyl ether and then filtered, giving 0.66 g of N-[(2-isobutyl-5-methyl-3-oxo-2,3-dihydro-1H-isoindol-1-yl)acetyl]guanidine in the form of a white solid melting at 266° C. (Analysis C16H22N4O2% calculated C, 63.56; H, 7.33; N, 18.53; O, 10.58%. found C, 63.57; H, 7.48; N, 18.50).

Provenance & Evidence