1,2-Dichloroethane → HCID 69018289, compound

Participants

Reaction Steps

To a solution of 1-benzyl-2-{(R)-[(3-tert-butoxycarbonylamino-propyl)-(1-p-tolyl-methanoyl)-amino]-methyl-propyl}-4-methyl-6-oxo-1,6-dihydro-pyrimidine-5-carboxylic acid (100 mg, 0.169 mmol) in CH2Cl2 (1.7 mL) was added EDC (36 mg, 0.186 mmol), HOBt (25 mg, 0.186 mmol), TEA (28 uL, 0.203 mmol) followed by ethylamine (85 uL of a 2.0M solution in THF, 0.169 mmol). The reaction mixture was stirred at ambient temperature for 16 h, then TFA (1 mL) was added. After 3 h, the reaction mixture was concentrated under reduced pressure and the residue was purified by reverse phase HPLC to give 47 mg (53%) of 2-{(R)-[(3-amino-propyl)-(1-p-tolyl-methanoyl)-amino]-methyl-propyl}-1-benzyl-4-methyl-6-oxo-1,6-dihydro-pyrimidine-5-carboxylic acid ethylamide as a pale yellow solid: MS (ES) m/e 518.4 (M+H)+.

Provenance & Evidence