Technology Process of (5Z,8Z,11Z,14Z)-(S)-18-((2S,4R,5S,6R)-4,5-Bis-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yloxy)-icosa-5,8,11,14-tetraenoic acid methyl ester
There total 5 articles about (5Z,8Z,11Z,14Z)-(S)-18-((2S,4R,5S,6R)-4,5-Bis-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yloxy)-icosa-5,8,11,14-tetraenoic acid methyl ester which
guide to synthetic route it.
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synthetic route:
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688034-93-7
(5Z,8Z,11Z,14Z)-(S)-18-((2S,4R,5S,6R)-4,5-Bis-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yloxy)-icosa-5,8,11,14-tetraenoic acid methyl ester
- Guidance literature:
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methyl 15-bromopentadeca-5(Z),8(Z),11(Z),14(Z)-tetraenoate; (2R,3S,4R,6S)-3,4-Bis-benzyloxy-2-benzyloxymethyl-6-((S)-1-ethyl-allyloxy)-tetrahydro-pyran;
With
9-borabicyclo[3.3.1]nonane dimer;
In
tetrahydrofuran;
at 23 ℃;
for 3h;
With
caesium carbonate;
(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; triphenyl-arsane;
In
tetrahydrofuran; water; N,N-dimethyl-formamide;
at 23 ℃;
for 6h;
Further stages.;
DOI:10.1016/j.tetlet.2004.01.151
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688034-93-7
(5Z,8Z,11Z,14Z)-(S)-18-((2S,4R,5S,6R)-4,5-Bis-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yloxy)-icosa-5,8,11,14-tetraenoic acid methyl ester
- Guidance literature:
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Multi-step reaction with 2 steps
1.1: HBr*PPh3
2.1: 9-BBN-H / tetrahydrofuran / 3 h / 23 °C
2.2: 92 percent / Cs2CO3 / Pd(dppf)Cl2; Ph3As / tetrahydrofuran; dimethylformamide; H2O / 6 h / 23 °C
With
9-borabicyclo[3.3.1]nonane dimer;
triphenylphosphine hydrobromide;
In
tetrahydrofuran;
2.2: Suzuki-Miyaura cross-coupling;
DOI:10.1016/j.tetlet.2004.01.151
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-
688034-93-7
(5Z,8Z,11Z,14Z)-(S)-18-((2S,4R,5S,6R)-4,5-Bis-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yloxy)-icosa-5,8,11,14-tetraenoic acid methyl ester
- Guidance literature:
-
Multi-step reaction with 2 steps
1.1: HBr*PPh3
2.1: 9-BBN-H / tetrahydrofuran / 3 h / 23 °C
2.2: 92 percent / Cs2CO3 / Pd(dppf)Cl2; Ph3As / tetrahydrofuran; dimethylformamide; H2O / 6 h / 23 °C
With
9-borabicyclo[3.3.1]nonane dimer;
triphenylphosphine hydrobromide;
In
tetrahydrofuran;
2.2: Suzuki-Miyaura cross-coupling;
DOI:10.1016/j.tetlet.2004.01.151