Hydrochloric Acid → HCID 89662793, compound

Participants

Reaction Steps

A 32% solution of HCl (1.79 mL) was added to a solution of 6-chloro-5-methyl-1H,3H-2,4,7a,8-tetraaza-cyclopenta[a]indene-2-carboxylic acid tert-butyl ester (1.70 g; 5.51 mmol; 1 eq.) in AcOH (5.8 mL) and the reaction mixture was stirred at room temperature for 16 hours. The solution was diluted with DCM, washed with 1M NaOH (2×), dried over sodium sulfate and concentrated in vacuo to afford the title compound (900 mg, 78%) as a yellow solid. 1H NMR (DMSO-d6) δ 9.37 (s, 1H), 4.09-3.98 (m, 4H), 3.70-3.53 (m, 1M), 2.55 (s, 3H). HPLC (max plot) 99.8%, Rt 1.20 min. UPLC/MS: (MS+) 209.1 ([M+H]+).

Provenance & Evidence