Technology Process of Acetic acid (2R,3R,4S,5R,6R)-4,5-bis-benzyloxy-2-benzyloxymethyl-6-((2R,3R,4S,5R,6R)-4,5-bis-benzyloxy-2-benzyloxymethyl-6-fluoro-tetrahydro-pyran-3-yloxy)-tetrahydro-pyran-3-yl ester
There total 10 articles about Acetic acid (2R,3R,4S,5R,6R)-4,5-bis-benzyloxy-2-benzyloxymethyl-6-((2R,3R,4S,5R,6R)-4,5-bis-benzyloxy-2-benzyloxymethyl-6-fluoro-tetrahydro-pyran-3-yloxy)-tetrahydro-pyran-3-yl ester which
guide to synthetic route it.
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synthetic route:
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113842-93-6
Acetic acid (2R,3R,4S,5R,6R)-4,5-bis-benzyloxy-2-benzyloxymethyl-6-((2R,3R,4S,5R,6R)-4,5-bis-benzyloxy-2-benzyloxymethyl-6-fluoro-tetrahydro-pyran-3-yloxy)-tetrahydro-pyran-3-yl ester
- Guidance literature:
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With
hexafluoropropene-diethylamine adduct;
In
diethyl ether;
at 20 ℃;
for 28h;
Yield given. Yields of byproduct given;
DOI:10.1016/0008-6215(87)80136-2
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113842-93-6
Acetic acid (2R,3R,4S,5R,6R)-4,5-bis-benzyloxy-2-benzyloxymethyl-6-((2R,3R,4S,5R,6R)-4,5-bis-benzyloxy-2-benzyloxymethyl-6-fluoro-tetrahydro-pyran-3-yloxy)-tetrahydro-pyran-3-yl ester
- Guidance literature:
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Multi-step reaction with 4 steps
1: 1.)(Bu3Sn)2O 2.) Bu4NBr / 1.) toluene, reflux, 4h, 2.) toluene, 80-85 deg C, 24h
2: 100 percent / pyridine / 4 h / 20 °C
3: 93 percent / PdCl2, AcONa, AcOH / H2O / 1 h / 70 °C
4: diethyl-1,1,2,3,3,3-hexafluoropropylamine / diethyl ether / 28 h / 20 °C
With
pyridine; hexafluoropropene-diethylamine adduct; tetrabutylammomium bromide; sodium acetate; acetic acid; bis(tri-n-butyltin)oxide; palladium dichloride;
In
diethyl ether; water;
DOI:10.1016/0008-6215(87)80136-2
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113842-93-6
Acetic acid (2R,3R,4S,5R,6R)-4,5-bis-benzyloxy-2-benzyloxymethyl-6-((2R,3R,4S,5R,6R)-4,5-bis-benzyloxy-2-benzyloxymethyl-6-fluoro-tetrahydro-pyran-3-yloxy)-tetrahydro-pyran-3-yl ester
- Guidance literature:
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Multi-step reaction with 8 steps
1: 3.3 g / 0.5M NaOMe / methanol / 2 h / 20 °C
2: 2.3 g / p-TsOH*H2O / dimethylformamide / 1 h / 20 °C
3: 1.) 50percent NaH in oil / 1.DMF, 20 deg C, 30 min 2.) DMF, 1h
4: 70 percent / AcOH / methanol / 1 h / 80 °C
5: 1.)(Bu3Sn)2O 2.) Bu4NBr / 1.) toluene, reflux, 4h, 2.) toluene, 80-85 deg C, 24h
6: 100 percent / pyridine / 4 h / 20 °C
7: 93 percent / PdCl2, AcONa, AcOH / H2O / 1 h / 70 °C
8: diethyl-1,1,2,3,3,3-hexafluoropropylamine / diethyl ether / 28 h / 20 °C
With
pyridine; hexafluoropropene-diethylamine adduct; tetrabutylammomium bromide; sodium methylate; sodium acetate; sodium hydride; toluene-4-sulfonic acid; acetic acid; bis(tri-n-butyltin)oxide; palladium dichloride;
In
methanol; diethyl ether; water; N,N-dimethyl-formamide;
DOI:10.1016/0008-6215(87)80136-2