Technology Process of (2S,3R,4E,8Z,2'R)-2-(2'-acetoxyhexadecanoyl)amino-3-O-acetyl-1-O-(2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl)-4,8-octadiene-1,3-diol
There total 10 articles about (2S,3R,4E,8Z,2'R)-2-(2'-acetoxyhexadecanoyl)amino-3-O-acetyl-1-O-(2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl)-4,8-octadiene-1,3-diol which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
With
4 A molecular sieve; silver trifluoromethanesulfonate;
In
dichloromethane; toluene;
at -20 - 0 ℃;
for 2h;
DOI:10.1016/S0040-4020(99)01018-2
- Guidance literature:
-
Multi-step reaction with 10 steps
1: 92 percent / LDA; CuI / tetrahydrofuran / -70 - -10 °C
2: 91 percent / iBu2AlH / toluene / 0.83 h / -70 - -50 °C
3: 78 percent / t-BuOK / tetrahydrofuran / -70 - 0 °C
4: 145 mg / aq. HCl / tetrahydrofuran / 16 h / 20 °C
5: 198 mg / Et3N / dimethylformamide / 6 h / 60 °C
6: 94 percent / NaOMe / CH2Cl2; methanol / 1 h / 0 °C
7: 91 percent / imidazole / CH2Cl2; dimethylformamide / 0.5 h / 0 °C
8: 140 mg / DMAP; pyridine / CH2Cl2 / 2 h / 5 - 10 °C
9: 91 mg / AcOH; TBAF / tetrahydrofuran / 3 h / 20 °C
10: 77 percent / molecular sieves 4A; AgOTf / CH2Cl2; toluene / 2 h / -20 - 0 °C
With
pyridine; 1H-imidazole; hydrogenchloride; dmap; copper(l) iodide; 4 A molecular sieve; potassium tert-butylate; tetrabutyl ammonium fluoride; sodium methylate; silver trifluoromethanesulfonate; diisobutylaluminium hydride; acetic acid; triethylamine; lithium diisopropyl amide;
In
tetrahydrofuran; methanol; dichloromethane; N,N-dimethyl-formamide; toluene;
1: Ring cleavage / 2: Reduction / 3: Wittig olefination / 4: Ring cleavage / 5: Acylation / 6: Hydrolysis / 7: Substitution / 8: Acetylation / 9: Substitution / 10: Substitution;
DOI:10.1016/S0040-4020(99)01018-2
- Guidance literature:
-
Multi-step reaction with 4 steps
1: 91 percent / imidazole / CH2Cl2; dimethylformamide / 0.5 h / 0 °C
2: 140 mg / DMAP; pyridine / CH2Cl2 / 2 h / 5 - 10 °C
3: 91 mg / AcOH; TBAF / tetrahydrofuran / 3 h / 20 °C
4: 77 percent / molecular sieves 4A; AgOTf / CH2Cl2; toluene / 2 h / -20 - 0 °C
With
pyridine; 1H-imidazole; dmap; 4 A molecular sieve; tetrabutyl ammonium fluoride; silver trifluoromethanesulfonate; acetic acid;
In
tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide; toluene;
1: Substitution / 2: Acetylation / 3: Substitution / 4: Substitution;
DOI:10.1016/S0040-4020(99)01018-2