Hydrogen chloride-ethyl acetate → 10-((3-Hydroxypyrrolidin-3-yl)ethynyl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine-2-carboxamide

Participants

Reaction Steps

In a solution of 3-(2-Carbamoyl-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-9-ylethynyl)-3-hydroxy-pyrrolidine-1-carboxylic acid tert-butyl ester (40 mg, 0.1 mmol) in methanol (20 ml) was added HCl/EA (20 ml). The solution was stirred for 3 h at room temperature. The reaction mixture was purified by column to afford the titled compound (3.5 mg, 10%). 1HNMR (Methanol-d4, 400 MHz): δ 8.62 (d, J=2.0 Hz, 1H), 7.78 (s, 1H), 7.41 (dd, J=2.0, 8.8 Hz, 1H), 7.08 (d, J=8.4 Hz, 1H), 4.52 (s, 4H), 3.54-3.40 (m, 4H), 2.43 (t, J=5.4 Hz, 2H), LCMS: 339.1 [M+H]+.

Provenance & Evidence