Technology Process of [6-[3,12-dihydroxy-10,13-dimethyl-7-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]-2-methylheptyl] acetate
There total 10 articles about [6-[3,12-dihydroxy-10,13-dimethyl-7-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]-2-methylheptyl] acetate which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
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Multi-step reaction with 10 steps
1: 94.7 percent / 4-dimethylaminopyridine / pyridine / 3.5 h / 0 deg C then rt., 3.5 h
2: 48 percent / iodosobenzene diacetate, iodine / CCl4 / 2 h / Heating; Irradiation
3: 89 percent / silver carbonate / acetone; H2O / 1.) 2.5 h 2.) reflux, overnight
4: 85 percent / PCC / CH2Cl2 / 1.5 h
5: 50 percent / tetrahydrofuran / 1 h / -20 - 0 °C
6: 3.0 g / NaOH / tetrahydrofuran; methanol; H2O / 6.5 h / Heating
7: 91 percent / pyridine / dioxane / cooling then rt., 30 min
8: 1.) Me3SiOTf, molecular sieves 4 Angstroem / 1.) C2H4Cl2, -20 deg C, 1 h 2.) C2H4Cl2, -20 deg C, 14 h
9: 86 percent / NaOH / tetrahydrofuran; methanol; H2O / Ambient temperature
With
pyridine; dmap; sodium hydroxide; trimethylsilyl trifluoromethanesulfonate; [bis(acetoxy)iodo]benzene; 4 A molecular sieve; iodine; silver carbonate; pyridinium chlorochromate;
In
tetrahydrofuran; 1,4-dioxane; pyridine; methanol; tetrachloromethane; dichloromethane; water; acetone;
DOI:10.1016/S0040-4020(01)89488-6
- Guidance literature:
-
Multi-step reaction with 9 steps
1: 48 percent / iodosobenzene diacetate, iodine / CCl4 / 2 h / Heating; Irradiation
2: 89 percent / silver carbonate / acetone; H2O / 1.) 2.5 h 2.) reflux, overnight
3: 85 percent / PCC / CH2Cl2 / 1.5 h
4: 50 percent / tetrahydrofuran / 1 h / -20 - 0 °C
5: 3.0 g / NaOH / tetrahydrofuran; methanol; H2O / 6.5 h / Heating
6: 91 percent / pyridine / dioxane / cooling then rt., 30 min
7: 1.) Me3SiOTf, molecular sieves 4 Angstroem / 1.) C2H4Cl2, -20 deg C, 1 h 2.) C2H4Cl2, -20 deg C, 14 h
8: 86 percent / NaOH / tetrahydrofuran; methanol; H2O / Ambient temperature
With
pyridine; sodium hydroxide; trimethylsilyl trifluoromethanesulfonate; [bis(acetoxy)iodo]benzene; 4 A molecular sieve; iodine; silver carbonate; pyridinium chlorochromate;
In
tetrahydrofuran; 1,4-dioxane; methanol; tetrachloromethane; dichloromethane; water; acetone;
DOI:10.1016/S0040-4020(01)89488-6
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126559-91-9
(3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-17-((E)-(1R,5R)-6-Benzyloxy-1,5-dimethyl-hex-3-enyl)-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthrene-3,7,12-triol
- Guidance literature:
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Multi-step reaction with 4 steps
1: 91 percent / pyridine / dioxane / cooling then rt., 30 min
2: 1.) Me3SiOTf, molecular sieves 4 Angstroem / 1.) C2H4Cl2, -20 deg C, 1 h 2.) C2H4Cl2, -20 deg C, 14 h
3: 86 percent / NaOH / tetrahydrofuran; methanol; H2O / Ambient temperature
With
pyridine; sodium hydroxide; trimethylsilyl trifluoromethanesulfonate; 4 A molecular sieve;
In
tetrahydrofuran; 1,4-dioxane; methanol; water;
DOI:10.1016/S0040-4020(01)89488-6