Technology Process of Thiocarbonic acid O-[(2S,3R,4R,5S,6S)-4,5-bis-benzyloxy-6-((2R,3R,4S,5S,6R)-4,5-bis-benzyloxy-6-benzyloxymethyl-2-octyloxy-tetrahydro-pyran-3-yloxy)-2-methyl-tetrahydro-pyran-3-yl] ester O-pentafluorophenyl ester
There total 12 articles about Thiocarbonic acid O-[(2S,3R,4R,5S,6S)-4,5-bis-benzyloxy-6-((2R,3R,4S,5S,6R)-4,5-bis-benzyloxy-6-benzyloxymethyl-2-octyloxy-tetrahydro-pyran-3-yloxy)-2-methyl-tetrahydro-pyran-3-yl] ester O-pentafluorophenyl ester which
guide to synthetic route it.
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synthetic route:
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283587-76-8
Thiocarbonic acid O-[(2S,3R,4R,5S,6S)-4,5-bis-benzyloxy-6-((2R,3R,4S,5S,6R)-4,5-bis-benzyloxy-6-benzyloxymethyl-2-octyloxy-tetrahydro-pyran-3-yloxy)-2-methyl-tetrahydro-pyran-3-yl] ester O-pentafluorophenyl ester
- Guidance literature:
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With
dmap;
In
dichloromethane;
DOI:10.1016/S0008-6215(00)00003-3
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283587-76-8
Thiocarbonic acid O-[(2S,3R,4R,5S,6S)-4,5-bis-benzyloxy-6-((2R,3R,4S,5S,6R)-4,5-bis-benzyloxy-6-benzyloxymethyl-2-octyloxy-tetrahydro-pyran-3-yloxy)-2-methyl-tetrahydro-pyran-3-yl] ester O-pentafluorophenyl ester
- Guidance literature:
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Multi-step reaction with 5 steps
1: 74 percent / Hg(CN)2; molecular sieves 3 Angstroem; HgBr2 / acetonitrile
2: 97 percent / NaOMe / methanol
3: 71 percent / DMTST; DTBMP; 4 Angstroem molecular sieves / CH2Cl2 / 4 h
4: 95 percent / NaOMe / methanol / 4 h / 20 °C
5: 98 percent / DMAP / CH2Cl2
With
dmap; 2,6-di-tert-butyl-4-methylpyridine; 3 A molecular sieve; 4 A molecular sieve; sodium methylate; mercury(II) cyanide; dimethyl-(methylthio)-sulphonium trifluoromethanesulphonate; mercury dibromide;
In
methanol; dichloromethane; acetonitrile;
1: Glycosylation / 2: Deacetylation / 3: Glycosylation / 4: Deacetylation / 5: Acylation;
DOI:10.1016/S0008-6215(00)00003-3
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283587-76-8
Thiocarbonic acid O-[(2S,3R,4R,5S,6S)-4,5-bis-benzyloxy-6-((2R,3R,4S,5S,6R)-4,5-bis-benzyloxy-6-benzyloxymethyl-2-octyloxy-tetrahydro-pyran-3-yloxy)-2-methyl-tetrahydro-pyran-3-yl] ester O-pentafluorophenyl ester
- Guidance literature:
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Multi-step reaction with 9 steps
1: NaOMe / methanol
2: camphorsulfonic acid
3: 93 percent / NaH / dimethylformamide
4: 84 percent / AcOH / 70 °C
5: 500 mg / Bu4NHSO4; NaOH / CH2Cl2; H2O / 48 h / 20 °C
6: 89 percent / pyridine
7: 71 percent / DMTST; DTBMP; 4 Angstroem molecular sieves / CH2Cl2 / 4 h
8: 95 percent / NaOMe / methanol / 4 h / 20 °C
9: 98 percent / DMAP / CH2Cl2
With
pyridine; dmap; sodium hydroxide; 2,6-di-tert-butyl-4-methylpyridine; 4 A molecular sieve; camphor-10-sulfonic acid; sodium methylate; tetra(n-butyl)ammonium hydrogensulfate; sodium hydride; acetic acid; dimethyl-(methylthio)-sulphonium trifluoromethanesulphonate;
In
methanol; dichloromethane; water; N,N-dimethyl-formamide;
1: Deacetylation / 2: Cyclization / 3: Alkylation / 4: Hydrolysis / 5: Alkylation / 6: Acetylation / 7: Glycosylation / 8: Deacetylation / 9: Acylation;
DOI:10.1016/S0008-6215(00)00003-3