Technology Process of [2S,4R(1R),5S,6S(2S,3Z,5S,6S,7S,8Z,11S,12R,13S,14S,15S,16Z)]-4-(2-methoxycarbonyl-1-methyl ethyl-1-yl)-6-{12-(t-butyldimethylsilyloxy)-5,7,9,11,13,15,19-heptamethyl-2,6-bis[(methoxymethyl)oxy]-14-(triethylsilyloxy)icosa-3,8,16,18-tetraen-1-yl}-5-methyl-2-phenyl-1,3-dioxinan
There total 4 articles about [2S,4R(1R),5S,6S(2S,3Z,5S,6S,7S,8Z,11S,12R,13S,14S,15S,16Z)]-4-(2-methoxycarbonyl-1-methyl ethyl-1-yl)-6-{12-(t-butyldimethylsilyloxy)-5,7,9,11,13,15,19-heptamethyl-2,6-bis[(methoxymethyl)oxy]-14-(triethylsilyloxy)icosa-3,8,16,18-tetraen-1-yl}-5-methyl-2-phenyl-1,3-dioxinan which
guide to synthetic route it.
The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:
synthetic route:
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[2S,4R(1R),5S,6S(2S,3Z,5S,6R,7S,8Z)]-4-(2-methoxycarbonyl-1-methyl-ethyl-1-yl)-6-{5,7-dimethyl-9-iodo-2,6-bis[(methoxymethyl)oxy]-deca-3,8-dien-1-yl}-5-methyl-2-phenyl-1,3-dioxinan
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1335112-70-3
(2Z,4Z,6S,7S,8R,9S,10R)-9-(t-butyldimethylsilyloxy)-11-iodo-7-(triethylsilyloxy)-1,5,7,9-tetramethyl undeca-2,4-diene
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1335112-71-4
[2S,4R(1R),5S,6S(2S,3Z,5S,6S,7S,8Z,11S,12R,13S,14S,15S,16Z)]-4-(2-methoxycarbonyl-1-methyl ethyl-1-yl)-6-{12-(t-butyldimethylsilyloxy)-5,7,9,11,13,15,19-heptamethyl-2,6-bis[(methoxymethyl)oxy]-14-(triethylsilyloxy)icosa-3,8,16,18-tetraen-1-yl}-5-methyl-2-phenyl-1,3-dioxinan
- Guidance literature:
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(2Z,4Z,6S,7S,8R,9S,10R)-9-(t-butyldimethylsilyloxy)-11-iodo-7-(triethylsilyloxy)-1,5,7,9-tetramethyl undeca-2,4-diene;
With
tert.-butyl lithium;
In
tetrahydrofuran; diethyl ether; pentane;
for 0.0333333h;
Inert atmosphere;
With
9-methoxy-9-borabicyclo[3.3.1]nonane;
In
tetrahydrofuran; diethyl ether; hexane; pentane;
at -78 - 20 ℃;
for 1.25h;
Inert atmosphere;
[2S,4R(1R),5S,6S(2S,3Z,5S,6R,7S,8Z)]-4-(2-methoxycarbonyl-1-methyl-ethyl-1-yl)-6-{5,7-dimethyl-9-iodo-2,6-bis[(methoxymethyl)oxy]-deca-3,8-dien-1-yl}-5-methyl-2-phenyl-1,3-dioxinan;
With
(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; triphenyl-arsane; caesium carbonate;
In
water; N,N-dimethyl-formamide;
at 20 ℃;
for 16h;
Inert atmosphere;
DOI:10.1002/chem.201100675
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1335112-71-4
[2S,4R(1R),5S,6S(2S,3Z,5S,6S,7S,8Z,11S,12R,13S,14S,15S,16Z)]-4-(2-methoxycarbonyl-1-methyl ethyl-1-yl)-6-{12-(t-butyldimethylsilyloxy)-5,7,9,11,13,15,19-heptamethyl-2,6-bis[(methoxymethyl)oxy]-14-(triethylsilyloxy)icosa-3,8,16,18-tetraen-1-yl}-5-methyl-2-phenyl-1,3-dioxinan
- Guidance literature:
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Multi-step reaction with 4 steps
1.1: bis(acetylacetonate)nickel(II) / tetrahydrofuran; diethyl ether / 16 h / 0 °C / Inert atmosphere
2.1: 2,3-dicyano-5,6-dichloro-p-benzoquinone / dichloromethane; water / 3.66 h / 0 - 20 °C / Inert atmosphere
3.1: 1H-imidazole; iodine; triphenylphosphine / diethyl ether; benzene / 2 h / 0 - 20 °C / Inert atmosphere
4.1: tert.-butyl lithium / tetrahydrofuran; diethyl ether; pentane / 0.03 h / Inert atmosphere
4.2: 1.25 h / -78 - 20 °C / Inert atmosphere
4.3: 16 h / 20 °C / Inert atmosphere
With
1H-imidazole; bis(acetylacetonate)nickel(II); iodine; tert.-butyl lithium; triphenylphosphine; 2,3-dicyano-5,6-dichloro-p-benzoquinone;
In
tetrahydrofuran; diethyl ether; dichloromethane; water; pentane; benzene;
DOI:10.1002/chem.201100675
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1335112-67-8
(2Z,4Z,6S,7S,8R,9R,10S)-9-(t-butyldimethylsilyloxy)-11-(4-methoxybenzyloxy)-7-(triethylsilyloxy)-1,5,7,9-tetramethyl undeca-2,4-diene
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1335112-71-4
[2S,4R(1R),5S,6S(2S,3Z,5S,6S,7S,8Z,11S,12R,13S,14S,15S,16Z)]-4-(2-methoxycarbonyl-1-methyl ethyl-1-yl)-6-{12-(t-butyldimethylsilyloxy)-5,7,9,11,13,15,19-heptamethyl-2,6-bis[(methoxymethyl)oxy]-14-(triethylsilyloxy)icosa-3,8,16,18-tetraen-1-yl}-5-methyl-2-phenyl-1,3-dioxinan
- Guidance literature:
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Multi-step reaction with 3 steps
1.1: 2,3-dicyano-5,6-dichloro-p-benzoquinone / dichloromethane; water / 3.66 h / 0 - 20 °C / Inert atmosphere
2.1: 1H-imidazole; iodine; triphenylphosphine / diethyl ether; benzene / 2 h / 0 - 20 °C / Inert atmosphere
3.1: tert.-butyl lithium / tetrahydrofuran; diethyl ether; pentane / 0.03 h / Inert atmosphere
3.2: 1.25 h / -78 - 20 °C / Inert atmosphere
3.3: 16 h / 20 °C / Inert atmosphere
With
1H-imidazole; iodine; tert.-butyl lithium; triphenylphosphine; 2,3-dicyano-5,6-dichloro-p-benzoquinone;
In
tetrahydrofuran; diethyl ether; dichloromethane; water; pentane; benzene;
DOI:10.1002/chem.201100675