Technology Process of Acetic acid (2S,3R,4S,5R,6R)-5-azido-2-[(2S,3R,4R,5S,6S)-3-benzyloxy-2-((2S,3R,4R,5S,6S)-3,5-bis-benzyloxy-2-ethylsulfanyl-6-methyl-tetrahydro-pyran-4-yloxy)-5-methoxy-6-methyl-tetrahydro-pyran-4-yloxy]-4-methoxy-6-methyl-tetrahydro-pyran-3-yl ester
There total 19 articles about Acetic acid (2S,3R,4S,5R,6R)-5-azido-2-[(2S,3R,4R,5S,6S)-3-benzyloxy-2-((2S,3R,4R,5S,6S)-3,5-bis-benzyloxy-2-ethylsulfanyl-6-methyl-tetrahydro-pyran-4-yloxy)-5-methoxy-6-methyl-tetrahydro-pyran-4-yloxy]-4-methoxy-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,3R,4S,5R,6R)-5-azido-2-[(2S,3R,4R,5S,6S)-3-benzyloxy-5-methoxy-6-methyl-2-(2,2,2-trichloro-acetimidoyloxy)-tetrahydro-pyran-4-yloxy]-4-methoxy-6-methyl-tetrahydro-pyran-3-yl ester
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455333-62-7
Acetic acid (2S,3R,4S,5R,6R)-5-azido-2-[(2S,3R,4R,5S,6S)-3-benzyloxy-2-((2S,3R,4R,5S,6S)-3,5-bis-benzyloxy-2-ethylsulfanyl-6-methyl-tetrahydro-pyran-4-yloxy)-5-methoxy-6-methyl-tetrahydro-pyran-4-yloxy]-4-methoxy-6-methyl-tetrahydro-pyran-3-yl ester
- Guidance literature:
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With
trimethylsilyl trifluoromethanesulfonate;
In
dichloromethane;
at -60 ℃;
DOI:10.1016/S0040-4039(02)00491-4
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455333-62-7
Acetic acid (2S,3R,4S,5R,6R)-5-azido-2-[(2S,3R,4R,5S,6S)-3-benzyloxy-2-((2S,3R,4R,5S,6S)-3,5-bis-benzyloxy-2-ethylsulfanyl-6-methyl-tetrahydro-pyran-4-yloxy)-5-methoxy-6-methyl-tetrahydro-pyran-4-yloxy]-4-methoxy-6-methyl-tetrahydro-pyran-3-yl ester
- Guidance literature:
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Multi-step reaction with 15 steps
1.1: PhC(OEt)3; CSA / acetonitrile
1.2: pyridine
1.3: 72 percent / AcOH / H2O
2.1: 84 percent / BF3*Et2O
3.1: 87 percent / NaOMe / methanol
4.1: DABCO / (Ph3P)3RhCl / ethanol; H2O; toluene
5.1: CSA / CH2Cl2
6.1: 100 percent / NaOMe / methanol
7.1: pyridine
8.1: LiN3 / dimethylformamide
9.1: TFA / CH2Cl2; H2O
10.1: pyridine
11.1: hydrazine acetate / dimethylformamide
11.2: 91 percent / K2CO3 / CH2Cl2
12.1: 63 percent / TMSOTf / CH2Cl2 / -40 °C
13.1: 83 percent / NBS / H2O; acetone
14.1: 100 percent / K2CO3 / CH2Cl2
15.1: 74 percent / TMSOTf / CH2Cl2 / -60 °C
With
pyridine; 1,4-diaza-bicyclo[2.2.2]octane; N-Bromosuccinimide; lithium azide; trimethylsilyl trifluoromethanesulfonate; camphor-10-sulfonic acid; boron trifluoride diethyl etherate; sodium methylate; hydrazinium monoacetate; potassium carbonate; triethoxymethylbenzene; trifluoroacetic acid;
Wilkinson's catalyst;
In
methanol; ethanol; dichloromethane; water; N,N-dimethyl-formamide; acetone; toluene; acetonitrile;
DOI:10.1016/S0040-4039(02)00491-4
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455333-62-7
Acetic acid (2S,3R,4S,5R,6R)-5-azido-2-[(2S,3R,4R,5S,6S)-3-benzyloxy-2-((2S,3R,4R,5S,6S)-3,5-bis-benzyloxy-2-ethylsulfanyl-6-methyl-tetrahydro-pyran-4-yloxy)-5-methoxy-6-methyl-tetrahydro-pyran-4-yloxy]-4-methoxy-6-methyl-tetrahydro-pyran-3-yl ester
- Guidance literature:
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Multi-step reaction with 12 steps
1.1: DABCO / (Ph3P)3RhCl / ethanol; H2O; toluene
2.1: CSA / CH2Cl2
3.1: 100 percent / NaOMe / methanol
4.1: pyridine
5.1: LiN3 / dimethylformamide
6.1: TFA / CH2Cl2; H2O
7.1: pyridine
8.1: hydrazine acetate / dimethylformamide
8.2: 91 percent / K2CO3 / CH2Cl2
9.1: 63 percent / TMSOTf / CH2Cl2 / -40 °C
10.1: 83 percent / NBS / H2O; acetone
11.1: 100 percent / K2CO3 / CH2Cl2
12.1: 74 percent / TMSOTf / CH2Cl2 / -60 °C
With
pyridine; 1,4-diaza-bicyclo[2.2.2]octane; N-Bromosuccinimide; lithium azide; trimethylsilyl trifluoromethanesulfonate; camphor-10-sulfonic acid; sodium methylate; hydrazinium monoacetate; potassium carbonate; trifluoroacetic acid;
Wilkinson's catalyst;
In
methanol; ethanol; dichloromethane; water; N,N-dimethyl-formamide; acetone; toluene;
DOI:10.1016/S0040-4039(02)00491-4