Methylamine hydrochloride → 2-chloro-7-(4-fluorophenyl)-N-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-amine

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2,4-dichloro-7-(4-fluorophenyl)-6,7-dihydro-5H-cyclopenta[d]pyrimidine (Preparation H) (500 mg, 1.766 mmol) and methanamine hydrochloride (179 mg, 2.65 mmol) were combined and purified as per Preparation Ha to give 2-chloro-7-(4-fluorophenyl)-N-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-amine (344 mg, 1.239 mmol, 70.1% yield). LC-MS (M+H)+=278.0. 1H NMR (500 MHz, CDCl3) δ ppm 7.03-7.12 (2H, m), 6.91-7.03 (2H, m), 4.53-4.79 (1H, m), 4.19-4.29 (1H, m), 3.09 (3H, d, J=4.88 Hz), 2.56-2.80 (3H, m), 2.00-2.15 (1H, m).

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