Technology Process of (1R,3S,4S,7R,8R,11R,12S,13R)-4,12,13-Tris-benzyloxy-8-(4-methoxy-phenyl)-2,9,14-trioxa-6-aza-tricyclo[9.2.1.03,7]tetradecane-6-carboxylic acid benzyl ester
There total 34 articles about (1R,3S,4S,7R,8R,11R,12S,13R)-4,12,13-Tris-benzyloxy-8-(4-methoxy-phenyl)-2,9,14-trioxa-6-aza-tricyclo[9.2.1.03,7]tetradecane-6-carboxylic acid benzyl ester which
guide to synthetic route it.
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synthetic route:
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164217-36-1
(1R,3S,4S,7R,8R,11R,12S,13R)-4,12,13-Tris-benzyloxy-8-(4-methoxy-phenyl)-2,9,14-trioxa-6-aza-tricyclo[9.2.1.03,7]tetradecane-6-carboxylic acid benzyl ester
- Guidance literature:
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With
N-Bromosuccinimide; 4 A molecular sieve;
In
toluene;
at 90 ℃;
for 20h;
DOI:10.1016/S0040-4039(00)76839-0
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164217-36-1
(1R,3S,4S,7R,8R,11R,12S,13R)-4,12,13-Tris-benzyloxy-8-(4-methoxy-phenyl)-2,9,14-trioxa-6-aza-tricyclo[9.2.1.03,7]tetradecane-6-carboxylic acid benzyl ester
- Guidance literature:
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Multi-step reaction with 6 steps
1: K2CO3 / tetrahydrofuran; H2O / 0.5 h / 25 °C
2: dl-10-camphorosulfonic acid / CH2Cl2 / 0.5 h / 25 °C
3: 91 percent / DIBAL / toluene / 0.5 h / -78 °C
4: 1.) n-BuLi, MS 4A / 1.) DMF, hexane, 0 deg C, 5 min, 2.) DMF, 25 deg C, 0.5 h
5: 90 percent / dl-10-camphorosulfonic acid / methanol; dioxane / 2 h / 25 °C
6: 64 percent / NBS, MS4AP / toluene / 24 h / 90 °C / var. solvents, temp., times
With
N-Bromosuccinimide; n-butyllithium; DL-10-camphorsulfonic acid; diisobutylaluminium hydride; potassium carbonate;
In
tetrahydrofuran; 1,4-dioxane; methanol; dichloromethane; water; toluene;
DOI:10.1246/bcsj.67.3057
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164217-36-1
(1R,3S,4S,7R,8R,11R,12S,13R)-4,12,13-Tris-benzyloxy-8-(4-methoxy-phenyl)-2,9,14-trioxa-6-aza-tricyclo[9.2.1.03,7]tetradecane-6-carboxylic acid benzyl ester
- Guidance literature:
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Multi-step reaction with 7 steps
1: imidazole / dimethylformamide / 0.5 h / 25 °C
2: tetrabutylammonium iodide, NaH / tetrahydrofuran / 2 h / 25 °C
3: (n-Bu4)NF / tetrahydrofuran / 0.5 h / 25 °C
4: triethylamine / CH2Cl2 / 0.08 h / -78 °C
5: 1.) n-BuLi, MS 4A / 1.) DMF, hexane, 0 deg C, 5 min, 2.) DMF, 25 deg C, 0.5 h
6: 90 percent / dl-10-camphorosulfonic acid / methanol; dioxane / 2 h / 25 °C
7: 64 percent / NBS, MS4AP / toluene / 24 h / 90 °C / var. solvents, temp., times
With
1H-imidazole; N-Bromosuccinimide; n-butyllithium; DL-10-camphorsulfonic acid; tetrabutyl ammonium fluoride; tetra-(n-butyl)ammonium iodide; sodium hydride; triethylamine;
In
tetrahydrofuran; 1,4-dioxane; methanol; dichloromethane; N,N-dimethyl-formamide; toluene;
DOI:10.1246/bcsj.67.3057