Technology Process of (3S,5S,7S,9S,11S,15R)-1,7-dibenzyloxy-3,16-bis-(tert-butyldimethylsilyloxy)-5,9-epoxy-11,15-epoxy-13-methylene-9-methoxy-8,8-dimethylhexadecane
There total 19 articles about (3S,5S,7S,9S,11S,15R)-1,7-dibenzyloxy-3,16-bis-(tert-butyldimethylsilyloxy)-5,9-epoxy-11,15-epoxy-13-methylene-9-methoxy-8,8-dimethylhexadecane 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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470470-73-6
(3S,5R,7S,9S,11S,15R)-1,7-dibenzyloxy-5,9-epoxy-11,15-epoxy-13-methylene-9-methoxy-8,8-dimethylhexadecane-3,16-diol
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470470-74-7
(3S,5S,7S,9S,11S,15R)-1,7-dibenzyloxy-3,16-bis-(tert-butyldimethylsilyloxy)-5,9-epoxy-11,15-epoxy-13-methylene-9-methoxy-8,8-dimethylhexadecane
- Guidance literature:
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With
1H-imidazole; dmap; tetra-(n-butyl)ammonium iodide;
In
dichloromethane;
at 20 ℃;
DOI:10.1016/S0040-4039(02)01054-7
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470470-74-7
(3S,5S,7S,9S,11S,15R)-1,7-dibenzyloxy-3,16-bis-(tert-butyldimethylsilyloxy)-5,9-epoxy-11,15-epoxy-13-methylene-9-methoxy-8,8-dimethylhexadecane
- Guidance literature:
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Multi-step reaction with 13 steps
1.1: 97 percent / imid.; DMAP; TBAI / 0.5 h / 20 °C
2.1: BH3 / tetrahydrofuran / 18 h / -18 - 20 °C
2.2: 67 percent / NaOH; aq. H2O2 / 3 h / 50 °C
3.1: (COCl)2; DMSO; Et3N / CH2Cl2 / 0.33 h / -78 °C
4.1: 49 percent / LDA / 0.03 h / -78 °C
5.1: 95 percent / Me4NBH(OAc)3 / acetic acid; acetonitrile / 18 h / -20 °C
6.1: 74 percent / PPTS / 18 h / 20 °C
7.1: 95 percent / TBAF / tetrahydrofuran / 18 h / 20 °C
8.1: 100 percent / (COCl)2; DMSO; Et3N / -78 °C
9.1: 100 percent / tetrahydrofuran / -78 - 20 °C
10.1: 99 percent / Dess-Martin periodinane / CH2Cl2 / 4 h / 20 °C
11.1: 55 percent / ZnI2; 4 Angstroem MS / CH2Cl2 / 18 h / 20 °C / protect from light
12.1: HF / H2O; acetonitrile / 24 h / 20 °C
12.2: 34 percent / PPTS / methanol / 3 h / 20 °C
13.1: 100 percent / imid.; TBAI; DMAP / CH2Cl2 / 20 °C
With
1H-imidazole; dmap; oxalyl dichloride; 4 Angstroem MS; hydrogen fluoride; borane; tetrabutyl ammonium fluoride; pyridinium p-toluenesulfonate; tetra-(n-butyl)ammonium iodide; Dess-Martin periodane; dimethyl sulfoxide; triethylamine; zinc(II) iodide; tetramethylammonium triacetoxyborohydride; lithium diisopropyl amide;
In
tetrahydrofuran; dichloromethane; water; acetic acid; acetonitrile;
DOI:10.1016/S0040-4039(02)01054-7
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470470-74-7
(3S,5S,7S,9S,11S,15R)-1,7-dibenzyloxy-3,16-bis-(tert-butyldimethylsilyloxy)-5,9-epoxy-11,15-epoxy-13-methylene-9-methoxy-8,8-dimethylhexadecane
- Guidance literature:
-
Multi-step reaction with 12 steps
1.1: BH3 / tetrahydrofuran / 18 h / -18 - 20 °C
1.2: 67 percent / NaOH; aq. H2O2 / 3 h / 50 °C
2.1: (COCl)2; DMSO; Et3N / CH2Cl2 / 0.33 h / -78 °C
3.1: 49 percent / LDA / 0.03 h / -78 °C
4.1: 95 percent / Me4NBH(OAc)3 / acetic acid; acetonitrile / 18 h / -20 °C
5.1: 74 percent / PPTS / 18 h / 20 °C
6.1: 95 percent / TBAF / tetrahydrofuran / 18 h / 20 °C
7.1: 100 percent / (COCl)2; DMSO; Et3N / -78 °C
8.1: 100 percent / tetrahydrofuran / -78 - 20 °C
9.1: 99 percent / Dess-Martin periodinane / CH2Cl2 / 4 h / 20 °C
10.1: 55 percent / ZnI2; 4 Angstroem MS / CH2Cl2 / 18 h / 20 °C / protect from light
11.1: HF / H2O; acetonitrile / 24 h / 20 °C
11.2: 34 percent / PPTS / methanol / 3 h / 20 °C
12.1: 100 percent / imid.; TBAI; DMAP / CH2Cl2 / 20 °C
With
1H-imidazole; dmap; oxalyl dichloride; 4 Angstroem MS; hydrogen fluoride; borane; tetrabutyl ammonium fluoride; pyridinium p-toluenesulfonate; tetra-(n-butyl)ammonium iodide; Dess-Martin periodane; dimethyl sulfoxide; triethylamine; zinc(II) iodide; tetramethylammonium triacetoxyborohydride; lithium diisopropyl amide;
In
tetrahydrofuran; dichloromethane; water; acetic acid; acetonitrile;
DOI:10.1016/S0040-4039(02)01054-7