Реакция #1884979

Уравнение реакции

[18-(tert-butyl-dimethylsilanyloxy)-4-cyclopropanesulfonylaminocarbonyl-2,15-dioxo-3,16-diaza-tricyclo[14.3.0.04,6]nonadec-7-en-14-yl]-carbamic acid tert-butyl ester

tetrabutylammonium floride

→

(4-cyclopropanesulfonylaminocarbonyl-18-hydroxy-2,15-dioxo-3,16-diaza-tricyclo[14.3.0.04,6]nonadec-7-en-14-yl)-carbamic acid tert-butyl ester

Выход 73.0%

Растворители

THF

Условия реакции

Обработка

1. 1
   Другоеthe THF was removed by rotary evaporation
2. 2
   ДругоеThe residue was partitioned between ethyl acetate and water
3. 3
   СушкаThe organic phase was dried (MgSO4)
4. 4
   Концентрированиеconcentrated in vacuo
5. 5
   Другоеto give the crude product
6. 6
   ДругоеIt was then purified
7. 7
   Другоеby triturating with hexane

Методика

To a mixture of [18-(tert-butyl-dimethylsilanyloxy)-4-cyclopropanesulfonylaminocarbonyl-2,15-dioxo-3,16-diaza-tricyclo[14.3.0.04,6]nonadec-7-en-14-yl]-carbamic acid tert-butyl ester (330 mg, 0.48 mmoL) in 25 mL of THF was added tetrabutylammonium floride (150 mg, 0.54 mmoL). The reaction mixture was stirred at rt for 18 h, and then the THF was removed by rotary evaporation. The residue was partitioned between ethyl acetate and water. The organic phase was dried (MgSO4) and concentrated in vacuo to give the crude product. It was then purified by triturating with hexane to yield 200 mg (73%) of (4-cyclopropanesulfonylaminocarbonyl-18-hydroxy-2,15-dioxo-3,16-diaza-tricyclo[14.3.0.04,6]nonadec-7-en-14-yl)-carbamic acid tert-butyl ester, Example 19, as a white solid. 1H NMR (500 MHz, CD3Cl) δ 1.87-1.64 (m, 21 H), 1.70-1.98 (m, 3 H), 2.15-2.56 (m, 5 H), 2.85-2.94 (m, 1 H), 3.71 (d, J=13.91 Hz, 1 H), 4.10-4.26 (m, 2 H), 4.51 (t, J=7.87 Hz, 1 H), 4.62 (s, 1 H), 4.98 (m, 1 H), 5.06 (d, J=8.78 Hz, I H), 5.64-5.71 (m, 1 H), 6.72 (s, 1 H), 10.24 (s, 1 H); MS m/z 569 (M++1).

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