Technology Process of 2-((2S,3R,6S)-6-{(E)-(S)-3-[(2R,3S,5R)-5-((S)-1-Methoxy-ethyl)-3-methyl-tetrahydro-furan-2-yl]-but-1-enyl}-3-methyl-tetrahydro-pyran-2-yl)-ethanol
There total 1 articles about 2-((2S,3R,6S)-6-{(E)-(S)-3-[(2R,3S,5R)-5-((S)-1-Methoxy-ethyl)-3-methyl-tetrahydro-furan-2-yl]-but-1-enyl}-3-methyl-tetrahydro-pyran-2-yl)-ethanol which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
Multi-step reaction with 10 steps
1.1: 70 percent / DIAD; PPh3 / toluene / 16 h / 20 °C
2.1: 94 percent / KOH / ethanol / 2 h / 60 °C
3.1: 77 percent / imidazole / CH2Cl2 / 16 h / 20 °C
4.1: LDA / tetrahydrofuran / 2 h / -78 °C
4.2: tetrahydrofuran / 2 h / -78 °C
5.1: DIBAL-H / CH2Cl2 / 1 h / -78 °C
6.1: BF3*OEt2 / CH2Cl2 / 1 h / -78 °C
7.1: TBAF / tetrahydrofuran / 16 h / 20 °C
8.1: 81 percent / NaH / dimethylformamide / 2 h / 20 °C
9.1: 65 percent / TBAF
With
1H-imidazole; potassium hydroxide; di-isopropyl azodicarboxylate; boron trifluoride diethyl etherate; tetrabutyl ammonium fluoride; sodium hydride; diisobutylaluminium hydride; triphenylphosphine; lithium diisopropyl amide;
In
tetrahydrofuran; ethanol; dichloromethane; N,N-dimethyl-formamide; toluene;
1.1: Mitsunobu reaction;
DOI:10.1055/s-2005-918486
- Guidance literature:
-
Multi-step reaction with 11 steps
1: DMSO, (COCl)2, Et3N / CH2Cl2
2: NaClO2
4: 1.) LDA / 1.) THF, -100 deg C, 2.) -95 deg C, 30 min
5: pyridine, DMAP
6: DBU / Ambient temperature
7: 34 percent / acetone / 0 °C / Irradiation
8: (i-Bu)2AlH (DIBALH) / toluene
9: imidazole
10: 80 percent / ZrCl4 / CH2Cl2 / 0.25 h / 0 °C
11: 1.) n-Bu4NF (TBAF), 2.) HF / 1.) THF, 2.) CH3CN
With
pyridine; 1H-imidazole; dmap; sodium chlorite; oxalyl dichloride; hydrogen fluoride; tetrabutyl ammonium fluoride; diisobutylaluminium hydride; dimethyl sulfoxide; 1,8-diazabicyclo[5.4.0]undec-7-ene; triethylamine; lithium diisopropyl amide;
zirconium(IV) chloride;
In
dichloromethane; acetone; toluene;
DOI:10.1016/S0040-4039(00)60377-5
- Guidance literature:
-
Multi-step reaction with 10 steps
1: DMSO, (COCl)2, Et3N / CH2Cl2
2: NaClO2
4: 1.) LDA / 1.) THF, -100 deg C, 2.) -95 deg C, 30 min
5: pyridine, DMAP
6: DBU / Ambient temperature
7: 34 percent / acetone / 0 °C / Irradiation
8: (i-Bu)2AlH (DIBALH) / toluene
9: imidazole
10: 80 percent / ZrCl4 / CH2Cl2 / 0.25 h / 0 °C
With
pyridine; 1H-imidazole; dmap; sodium chlorite; oxalyl dichloride; diisobutylaluminium hydride; dimethyl sulfoxide; 1,8-diazabicyclo[5.4.0]undec-7-ene; triethylamine; lithium diisopropyl amide;
zirconium(IV) chloride;
In
dichloromethane; acetone; toluene;
DOI:10.1016/S0040-4039(00)60377-5