Technology Process of (1R,2R,3S,3aR,8bS)-methyl 1,8b-dihydroxy-6-((2S,6S)-6-(2-hydroxymethyl)-1,4-dioxan-2-yloxy)-8-methoxy-3a-(4-methoxyphenyl)-3-phenyl-2,3,3a,8b-tetrahydro-1H-benzo[b]cyclopenta[d]furan-2-carboxylate
There total 16 articles about (1R,2R,3S,3aR,8bS)-methyl 1,8b-dihydroxy-6-((2S,6S)-6-(2-hydroxymethyl)-1,4-dioxan-2-yloxy)-8-methoxy-3a-(4-methoxyphenyl)-3-phenyl-2,3,3a,8b-tetrahydro-1H-benzo[b]cyclopenta[d]furan-2-carboxylate which
guide to synthetic route it.
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synthetic route:
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1402931-58-1
(1R,2R,3S,3aR,8bS)-methyl 1,8b-dihydroxy-6-((2S,6S)-6-(2-hydroxymethyl)-1,4-dioxan-2-yloxy)-8-methoxy-3a-(4-methoxyphenyl)-3-phenyl-2,3,3a,8b-tetrahydro-1H-benzo[b]cyclopenta[d]furan-2-carboxylate
- Guidance literature:
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Multi-step reaction with 2 steps
1.1: triphenylphosphine / toluene / 0.17 h / 0 °C / Inert atmosphere
1.2: 2 h / 0 °C / Inert atmosphere; Molecular sieve
2.1: 5% Pd(OH)2/C; hydrogen / tetrahydrofuran / Inert atmosphere
With
5% Pd(OH)2/C; hydrogen; triphenylphosphine;
In
tetrahydrofuran; toluene;
DOI:10.1021/jm3011542
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1402931-58-1
(1R,2R,3S,3aR,8bS)-methyl 1,8b-dihydroxy-6-((2S,6S)-6-(2-hydroxymethyl)-1,4-dioxan-2-yloxy)-8-methoxy-3a-(4-methoxyphenyl)-3-phenyl-2,3,3a,8b-tetrahydro-1H-benzo[b]cyclopenta[d]furan-2-carboxylate
- Guidance literature:
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Multi-step reaction with 8 steps
1.1: lithium hexamethyldisilazane / tetrahydrofuran / 2 h / -70 - -20 °C / Inert atmosphere
2.1: sulfuric acid; acetic acid / 20 h / 20 °C / Inert atmosphere
3.1: water; sodium hydroxide / ethanol / 1 h / 80 °C / Inert atmosphere
4.1: methanol; dichloromethane; acetonitrile / 10 h / 0 - 5 °C / Inert atmosphere; UV-irradiation
4.2: 1 h / 60 °C / Inert atmosphere
4.3: 48 h / Inert atmosphere
5.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran / 18 h / 20 °C / Inert atmosphere
6.1: ChiralPak AD-H / ethanol / Inert atmosphere; Supercritical conditions; Resolution of racemate
7.1: triphenylphosphine / toluene / 0.17 h / 0 °C / Inert atmosphere
7.2: 2 h / 0 °C / Inert atmosphere; Molecular sieve
8.1: 5% Pd(OH)2/C; hydrogen / tetrahydrofuran / Inert atmosphere
With
sulfuric acid; 5% Pd(OH)2/C; 5%-palladium/activated carbon; water; hydrogen; acetic acid; triphenylphosphine; sodium hydroxide; lithium hexamethyldisilazane;
In
tetrahydrofuran; methanol; ethanol; dichloromethane; toluene; acetonitrile;
1.1: |Baker-Venkataraman Rearrangement;
DOI:10.1021/jm3011542
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1402931-58-1
(1R,2R,3S,3aR,8bS)-methyl 1,8b-dihydroxy-6-((2S,6S)-6-(2-hydroxymethyl)-1,4-dioxan-2-yloxy)-8-methoxy-3a-(4-methoxyphenyl)-3-phenyl-2,3,3a,8b-tetrahydro-1H-benzo[b]cyclopenta[d]furan-2-carboxylate
- Guidance literature:
-
Multi-step reaction with 7 steps
1.1: sulfuric acid; acetic acid / 20 h / 20 °C / Inert atmosphere
2.1: water; sodium hydroxide / ethanol / 1 h / 80 °C / Inert atmosphere
3.1: methanol; dichloromethane; acetonitrile / 10 h / 0 - 5 °C / Inert atmosphere; UV-irradiation
3.2: 1 h / 60 °C / Inert atmosphere
3.3: 48 h / Inert atmosphere
4.1: 5%-palladium/activated carbon; hydrogen / tetrahydrofuran / 18 h / 20 °C / Inert atmosphere
5.1: ChiralPak AD-H / ethanol / Inert atmosphere; Supercritical conditions; Resolution of racemate
6.1: triphenylphosphine / toluene / 0.17 h / 0 °C / Inert atmosphere
6.2: 2 h / 0 °C / Inert atmosphere; Molecular sieve
7.1: 5% Pd(OH)2/C; hydrogen / tetrahydrofuran / Inert atmosphere
With
sulfuric acid; 5% Pd(OH)2/C; 5%-palladium/activated carbon; water; hydrogen; acetic acid; triphenylphosphine; sodium hydroxide;
In
tetrahydrofuran; methanol; ethanol; dichloromethane; toluene; acetonitrile;
DOI:10.1021/jm3011542