Technology Process of tert-butyl ((3aR,5S,6R,7R,7aR)-6-(benzyloxy)-7-fluoro-5-formyl-5,6,7,7a-tetrahydro-3aH-pyrano[3,2-d]thiazol-2-yl)(ethyl)carbamate
There total 10 articles about tert-butyl ((3aR,5S,6R,7R,7aR)-6-(benzyloxy)-7-fluoro-5-formyl-5,6,7,7a-tetrahydro-3aH-pyrano[3,2-d]thiazol-2-yl)(ethyl)carbamate which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
With
Dess-Martin periodane;
In
dichloromethane;
at 20 ℃;
for 1.5h;
- Guidance literature:
-
Multi-step reaction with 8 steps
1: triethylamine / methanol / 10 h / 25 °C
2: N-ethyl-N,N-diisopropylamine; dmap / dichloromethane / 0 - 20 °C
3: diethylamino-sulfur trifluoride / dichloromethane / 48 h / -78 - 20 °C / Inert atmosphere
4: potassium carbonate; methanol / 3 h / 0 - 20 °C
5: 1H-imidazole / N,N-dimethyl-formamide / 72 h / 20 °C
6: tetra-(n-butyl)ammonium iodide; sodium hydride / N,N-dimethyl-formamide; mineral oil / 16 h / 0 - 20 °C
7: tetrabutyl ammonium fluoride / tetrahydrofuran / 2 h / 0 - 20 °C
8: Dess-Martin periodane / dichloromethane / 1.5 h / 20 °C
With
1H-imidazole; methanol; dmap; diethylamino-sulfur trifluoride; tetrabutyl ammonium fluoride; tetra-(n-butyl)ammonium iodide; sodium hydride; potassium carbonate; Dess-Martin periodane; triethylamine; N-ethyl-N,N-diisopropylamine;
In
tetrahydrofuran; methanol; dichloromethane; N,N-dimethyl-formamide; mineral oil;
- Guidance literature:
-
Multi-step reaction with 5 steps
1: potassium carbonate; methanol / 3 h / 0 - 20 °C
2: 1H-imidazole / N,N-dimethyl-formamide / 72 h / 20 °C
3: tetra-(n-butyl)ammonium iodide; sodium hydride / N,N-dimethyl-formamide; mineral oil / 16 h / 0 - 20 °C
4: tetrabutyl ammonium fluoride / tetrahydrofuran / 2 h / 0 - 20 °C
5: Dess-Martin periodane / dichloromethane / 1.5 h / 20 °C
With
1H-imidazole; methanol; tetrabutyl ammonium fluoride; tetra-(n-butyl)ammonium iodide; sodium hydride; potassium carbonate; Dess-Martin periodane;
In
tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide; mineral oil;