Technology Process of (2Z,6E)-(4S,5R,8S,9R,10S,12S,13R)-5-(tert-Butyl-dimethyl-silanyloxy)-13-[3-(2,5-dimethyl-pyrrol-1-yl)-2,5-dimethoxy-phenyl]-9,10,13-trimethoxy-4,6,8,12-tetramethyl-trideca-2,6-dienoic acid methyl ester
There total 19 articles about (2Z,6E)-(4S,5R,8S,9R,10S,12S,13R)-5-(tert-Butyl-dimethyl-silanyloxy)-13-[3-(2,5-dimethyl-pyrrol-1-yl)-2,5-dimethoxy-phenyl]-9,10,13-trimethoxy-4,6,8,12-tetramethyl-trideca-2,6-dienoic acid methyl ester which
guide to synthetic route it.
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synthetic route:
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123084-07-1
(E)-(2R,3R,6S,7R,8S,10S,11R)-3-(tert-Butyl-dimethyl-silanyloxy)-11-[3-(2,5-dimethyl-pyrrol-1-yl)-2,5-dimethoxy-phenyl]-7,8,11-trimethoxy-2,4,6,10-tetramethyl-undec-4-enal
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123083-94-3
(2Z,6E)-(4S,5R,8S,9R,10S,12S,13R)-5-(tert-Butyl-dimethyl-silanyloxy)-13-[3-(2,5-dimethyl-pyrrol-1-yl)-2,5-dimethoxy-phenyl]-9,10,13-trimethoxy-4,6,8,12-tetramethyl-trideca-2,6-dienoic acid methyl ester
- Guidance literature:
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With
18-crown-6 ether; potassium hexamethylsilazane;
In
tetrahydrofuran;
at -78 ℃;
for 1h;
DOI:10.1039/c39890000378
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123083-94-3
(2Z,6E)-(4S,5R,8S,9R,10S,12S,13R)-5-(tert-Butyl-dimethyl-silanyloxy)-13-[3-(2,5-dimethyl-pyrrol-1-yl)-2,5-dimethoxy-phenyl]-9,10,13-trimethoxy-4,6,8,12-tetramethyl-trideca-2,6-dienoic acid methyl ester
- Guidance literature:
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Multi-step reaction with 8 steps
1: 99 percent / 2,6-lutidine / CH2Cl2 / 1.5 h / 0 °C
2: 98 percent / di-isobutyl aluminium hydride / toluene / 1.5 h / -20 °C
3: 99 percent / imidazole / dimethylformamide / 17 h / 25 °C
4: 1.) T-BuLi, CuCN; 2.) BF3OEt2*OEt2 / 1.) Et2O, -80 deg C, 2 h then -78 deg C to -10 deg C, 15 min; 2.) -78 deg C, 1 h
5: 96 percent / NaH / tetrahydrofuran / 6 h
6: 96 percent / HF*Py-Py-THF / methanol / 6.5 h / 25 °C
7: 89 percent / SO3*Py, Et3N / tetrahydrofuran; dimethylsulfoxide / 1.5 h / 25 °C
8: 99 percent / KN(SiMe3)2, 18-crown-6 / tetrahydrofuran / 1 h / -78 °C
With
tetrahydrofuran; pyridine; 1H-imidazole; 2,6-dimethylpyridine; 18-crown-6 ether; pyridine-SO3 complex; boron trifluoride diethyl etherate; tert.-butyl lithium; potassium hexamethylsilazane; sodium hydride; diisobutylaluminium hydride; pyridine hydrogenfluoride; triethylamine;
In
tetrahydrofuran; methanol; dichloromethane; dimethyl sulfoxide; N,N-dimethyl-formamide; toluene;
DOI:10.1039/c39890000378
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123083-94-3
(2Z,6E)-(4S,5R,8S,9R,10S,12S,13R)-5-(tert-Butyl-dimethyl-silanyloxy)-13-[3-(2,5-dimethyl-pyrrol-1-yl)-2,5-dimethoxy-phenyl]-9,10,13-trimethoxy-4,6,8,12-tetramethyl-trideca-2,6-dienoic acid methyl ester
- Guidance literature:
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Multi-step reaction with 5 steps
1: 1.) T-BuLi, CuCN; 2.) BF3OEt2*OEt2 / 1.) Et2O, -80 deg C, 2 h then -78 deg C to -10 deg C, 15 min; 2.) -78 deg C, 1 h
2: 96 percent / NaH / tetrahydrofuran / 6 h
3: 96 percent / HF*Py-Py-THF / methanol / 6.5 h / 25 °C
4: 89 percent / SO3*Py, Et3N / tetrahydrofuran; dimethylsulfoxide / 1.5 h / 25 °C
5: 99 percent / KN(SiMe3)2, 18-crown-6 / tetrahydrofuran / 1 h / -78 °C
With
tetrahydrofuran; pyridine; 18-crown-6 ether; pyridine-SO3 complex; boron trifluoride diethyl etherate; tert.-butyl lithium; potassium hexamethylsilazane; sodium hydride; pyridine hydrogenfluoride; triethylamine;
In
tetrahydrofuran; methanol; dimethyl sulfoxide;
DOI:10.1039/c39890000378