Technology Process of Acetic acid (2S,3S,4R,5R,6S)-4,5-diacetoxy-2-((2R,3S,4R,5R,6R)-3-acetylamino-2-benzyloxy-5-hydroxy-6-hydroxymethyl-tetrahydro-pyran-4-ylsulfanyl)-6-methyl-tetrahydro-pyran-3-yl ester
There total 10 articles about Acetic acid (2S,3S,4R,5R,6S)-4,5-diacetoxy-2-((2R,3S,4R,5R,6R)-3-acetylamino-2-benzyloxy-5-hydroxy-6-hydroxymethyl-tetrahydro-pyran-4-ylsulfanyl)-6-methyl-tetrahydro-pyran-3-yl ester which
guide to synthetic route it.
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synthetic route:
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Acetic acid (2S,3S,4R,5R,6S)-4,5-diacetoxy-2-((4aR,6R,7S,8R,8aR)-7-acetylamino-6-benzyloxy-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxin-8-ylsulfanyl)-6-methyl-tetrahydro-pyran-3-yl ester
- Guidance literature:
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With
camphor-10-sulfonic acid;
In
methanol;
at 50 ℃;
for 1.5h;
DOI:10.1016/S0040-4020(97)00246-9
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10375-65-2,13318-46-2,13343-66-3,19374-72-2,33423-34-6,34029-78-2,41355-94-6,110911-57-4,141019-71-8
benzyl 2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-β-D-glucopyranoside
- Guidance literature:
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Multi-step reaction with 7 steps
1: NaOMe / methanol / 1 h / Ambient temperature
2: 33.5 g / p-TsOH*H2O / acetonitrile / 14 h / Ambient temperature
3: 1) MsCl, 2) NaOAc*3H2O / 1) CH2Cl2, pyridine, room temperature, 28 h, 2) 2-methoxyethanol, H2O, 130 deg C, 18 h
4: 72 percent / NaH, 1,1'-sulfonyldiimidazole / tetrahydrofuran / 15 h / Ambient temperature
5: 98 percent / pyridine / CH2Cl2 / 0.5 h / Ambient temperature
6: 61 percent / NaH / dimethylformamide / 0.5 h / 20 °C
7: 73 percent / camphorsulfonic acid / methanol / 1.5 h / 50 °C
With
pyridine; camphor-10-sulfonic acid; sodium methylate; sodium acetate; sodium hydride; toluene-4-sulfonic acid; methanesulfonyl chloride; N,N`-sulfuryldiimidazole;
In
tetrahydrofuran; methanol; dichloromethane; N,N-dimethyl-formamide; acetonitrile;
DOI:10.1016/S0040-4020(97)00246-9
- Guidance literature:
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Multi-step reaction with 8 steps
1: 61 percent / 4 Angstroem molecular sieves, SnCl4 / acetonitrile / 14 h / 75 °C
2: NaOMe / methanol / 1 h / Ambient temperature
3: 33.5 g / p-TsOH*H2O / acetonitrile / 14 h / Ambient temperature
4: 1) MsCl, 2) NaOAc*3H2O / 1) CH2Cl2, pyridine, room temperature, 28 h, 2) 2-methoxyethanol, H2O, 130 deg C, 18 h
5: 72 percent / NaH, 1,1'-sulfonyldiimidazole / tetrahydrofuran / 15 h / Ambient temperature
6: 98 percent / pyridine / CH2Cl2 / 0.5 h / Ambient temperature
7: 61 percent / NaH / dimethylformamide / 0.5 h / 20 °C
8: 73 percent / camphorsulfonic acid / methanol / 1.5 h / 50 °C
With
pyridine; 4 A molecular sieve; camphor-10-sulfonic acid; sodium methylate; sodium acetate; tin(IV) chloride; sodium hydride; toluene-4-sulfonic acid; methanesulfonyl chloride; N,N`-sulfuryldiimidazole;
In
tetrahydrofuran; methanol; dichloromethane; N,N-dimethyl-formamide; acetonitrile;
DOI:10.1016/S0040-4020(97)00246-9