Реакция #1488224

Уравнение реакции

(1R,3aS,5aR,5bR,7aR,11aR,11bR,13aR,13bR)-5a, 5b,8,8,11a-pentamethyl-3a-((2-(4-(methylsulfonyl)piperidin-1-yl)ethyl)amino)-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 trifluoromethanesulfonate

methyl 1-acetamido-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)cyclohex-3-enecarboxylate

→

title compound

Выход 58.3%

methyl 1-acetamido-4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-5a,5b,8,8,11a-pentamethyl-3a-((2-(4-(methylsulfonyl)piperidin-1-yl)ethyl)amino)-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)cyclohex-3-enecarboxylate

Выход 58.3%

Условия реакции

Обработка

1. 1
   Другоеdescribed in step 1 for the preparation of Example 1
2. 2
   ДругоеThe product was obtained as a mixture of diastereomers in 58.3% yield
3. 3
   Другоеm/e 794.6 (M+H)+, 2.718 min (method 8)

Методика

The title compound was prepared following the method described in step 1 for the preparation of Example 1, using (1R,3aS,5aR,5bR,7aR,11aR,11bR,13aR,13bR)-5a, 5b,8,8,11a-pentamethyl-3a-((2-(4-(methylsulfonyl)piperidin-1-yl)ethyl)amino)-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 trifluoromethanesulfonate (triflate-2) and methyl 1-acetamido-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)cyclohex-3-enecarboxylate as the reactants. The product was obtained as a mixture of diastereomers in 58.3% yield. MS: m/e 794.6 (M+H)+, 2.718 min (method 8). 1H NMR (400 MHz, CHLOROFORM-d) δ 5.71 (d, J=5.5 Hz, 1H), 5.28 (br. s., 1H), 5.22 (s, 1H), 4.73 (br. s., 1H), 4.60 (br. s., 1H), 3.75 (s, 3H), 3.15 (d, J=10.5 Hz, 2H), 2.92-2.79 (m, 4H), 2.73-2.53 (m, 4H), 2.52-2.22 (m, 7H), 2.20-2.08 (m, 5H), 2.03 (br. s., 1H), 2.00 (d, J=1.8 Hz, 3H), 1.98-1.75 (m, 7H), 1.70 (s, 3H), 1.68-1.20 (m, 15H), 1.14-1.04 (m, 6H), 1.00-0.91 (m, 6H), 0.86 (s, 3H).

Источник