Lithium hydroxide, monohydrate → 6-[(4-tert-Butylphenyl)sulfonyl]-7-methyl-2-(trifluoromethyl)-6,11-dihydro-5H-pyrido[2,3-b][1,5]benzodiazepine-8-carboxamide

関与物質

反応条件

反応手順

A mixture of 8-cyano-6-[(4-tert-butylphenyl)sulfonyl]-7-methyl-2-(trifluoromethyl)-6,11-dihydro-5H-pyrido[2,3-b][1,5]benzodiazepine (199 mg, 0.398 mmol) and lithium hydroxide monohydrate (50.1 mg, 2.295 mmol) in 1:1 dioxane-water was heated in a microwave reactor for 15 min at 100° C., followed by 30 min at 120° C. The reaction mixture was cooled to room temperature, diluted with EtOAc, and the organic layer was separated, washed with water, brine, dried over MgSO4 and concentrated. The residue was purified via reverse-phase HPLC to provide the title compound. LC/MS: m/e 519.1 (M+H)+. 1H NMR (500 MHz, CD3OD): δ 7.60 (1H, d), 7.35 (1H, d), 7.15 (2H, d), 7.03-7.10 (3H, m), 6.93 (1H, d), 5.19 (1H, d), 4.40 (1H, d), 2.60 (3H, s), 1.25 (9H, s).

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