反应详情

温度

100 °C

Methyl 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-(aziridin-1-yl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate (250 mg, 0.439 mmol) and (1R,5S)-tert-butyl 3,6-diazabicyclo[3.1.1]heptane-6-carboxylate (435 mg, 2.194 mmol) were combined in a 20 mL scintillation vial, dissolved in THF (5 mL) and treated with N,N-di-iso-propylethylamine (0.764 mL, 4.39 mmol). The reaction mixture was heated to 100° C. After 112 h, the reaction mixture was cooled to rt, purified by reverse phase HPLC using prep-HPLC method 13 and dried under vacuum to give the title compound (126.6 mg, 0.127 mmol, 29.0% yield) as a white solid. LC/MS: m/e 768.5 (M+H)+, 2.41 min (method 7). 1H NMR (400 MHz, CHLOROFORM-d) δ 7.94 (d, J=8.6 Hz, 2H), 7.20 (d, J=8.3 Hz, 2H), 5.30 (d, J=4.4 Hz, 1H), 4.79 (s, 1H), 4.70 (s, 1H), 4.17 (d, J=5.9 Hz, 2H), 3.92 (s, 3H), 3.62 (d, J=11.7 Hz, 1H), 3.56-3.44 (m, 3H), 3.43-3.31 (m, 5H), 2.85-2.72 (m, 1H), 2.66-2.56 (m, 1H), 2.12 (dd, J=17.0, 6.5 Hz, 2H), 2.07-1.89 (m, 5H), 1.75 (d, J=11.5 Hz, 1H), 1.70 (s, 3H), 1.65 (br. s., 1H), 1.60-1.50 (m, 5H), 1.48 (s, 9H), 1.46-1.34 (m, 5H), 1.26-1.19 (m, 1H), 1.13 (s, 3H), 1.05 (s, 3H), 1.00 (s, 3H), 0.94 (s, 3H), 0.94 (br. s., 3H). 13C NMR (101 MHz, CHLOROFORM-d) δ 167.2, 154.9, 148.6, 146.9, 146.3, 130.0, 128.5, 128.0, 123.9, 111.8, 81.7, 77.2, 72.4, 58.3, 53.9, 52.8, 52.0, 49.4, 49.0, 45.3, 42.1, 41.8, 40.7, 37.9, 37.5, 37.2, 36.2, 33.5, 32.6, 29.4, 28.3, 28.3, 27.8, 26.3, 25.4, 25.1, 21.0, 20.9, 19.6, 19.1, 16.5, 15.8, 14.6.

1. temperaturethe reaction mixture was cooled to rt
2. custompurified by reverse phase
3. customdried under vacuum