反应详情

To a solution 1-({3-[(1S,2S)-2-hydroxycyclohexyl]-4-oxo-3,4-dihydrobenzo[h]quinazolin-6-yl}methyl)-4-pyridin-2-ylpiperidine-4-carbonitrile (Example 2, 9.0 mg, 0.018 mmol) in 1.5 mL of THF and 0.018 mL HCl (1 M in dioxane, 0.18 mL, 0.18 mmol) was added m-chloroperoxybenzoic acid (3.2 mg, 0.18 mmol). After 1 h, acetonitrile (1 mL) was added. After 15 h, additional m-chloroperbenzoic acid (1.6 mg, 0.090 mmol) was added. After 30 min, the reaction was treated with water and extracted 3× with ethyl acetate. The combined organic solution was dried over sodium sulfate, filtered, and concentrated in vacuo. The resultant residue was purified via preparative TLC eluting with 10% methanol in dichloromethane to provide the title compound that gave a proton NMR spectra consistent with theory and a mass ion (ES+) of 510.2505 for [M+H]+ [Cal'd for C30H32N5O3, [M+H]+=510.2500]: 1H NMR (400 MHz, CDCl3) δ 9.05 (d, J=8.4 Hz, 1H), 8.61 (d, J=4.9 Hz, 1H), 8.54 (d, J=8.5 Hz, 1H), 8.46 (s, 1H), 8.38 (s, 1H), 8.06 (s, 1H), 7.95-7.92 (m, 1H), 7.84 (t, J=7.8 Hz, 1H), 7.75-7.71 (m, 2H), 7.47 (d, J=8.0 Hz, 1H), 4.65 (br s, 1H), 4.05 (br s, 1H), 3.95-3.85 (m, 2H), 3.84-3.82 (m, 2H), 3.68-3.49 (m, 1H), 3.21-3.14 (m, 1H), 2.26-1.71 (m, 6H), 1.68-0.83 (m, 6H).

1. waitAfter 15 h
2. waitAfter 30 min
3. extractionextracted 3× with ethyl acetate
4. dry with materialThe combined organic solution was dried over sodium sulfate
5. filtrationfiltered
6. concentrationconcentrated in vacuo
7. customThe resultant residue was purified via preparative TLC
8. washeluting with 10% methanol in dichloromethane