Technology Process of methyl O-[3,4,6-tri-O-benzyl-2-O-(4-methoxybenzyl)-α-D-(1-13C)-galactopyranosyl]-(1-3)-O-(4,6-di-O-acetyl-2-azido-2-deoxy-α-D-glucopyranosyl)-(1-3)-2,4-di-O-benzyl-α-L-rhamnopyranoside
There total 15 articles about methyl O-[3,4,6-tri-O-benzyl-2-O-(4-methoxybenzyl)-α-D-(1-13C)-galactopyranosyl]-(1-3)-O-(4,6-di-O-acetyl-2-azido-2-deoxy-α-D-glucopyranosyl)-(1-3)-2,4-di-O-benzyl-α-L-rhamnopyranoside which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
Multi-step reaction with 6 steps
2: 8 h / Heating
3: 85 percent / Me3SiOSO2Me / CH2Cl2
4: NaOMe / methanol / 4 h
5: 85 percent / 1.) NaH / dimethylformamide / 3 h / 0 °C
6: 1.) chlorine, 2,6-di-tert-butylpyridine, 4 Angstroem mol. sieves; 2.) CF3SO2OAg / 1.) CH2Cl2, CCl4, 23 deg C, 15 min; 2.) CH2Cl2, CCl4, -78 deg C, 3 h
With
2,6-di-tert-butyl-pyridine; 4 A molecular sieve; trimethylsilyl methanesulfonate; sodium methylate; silver trifluoromethanesulfonate; chlorine; sodium hydride;
In
methanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1016/S0008-6215(98)00047-0
- Guidance literature:
-
Multi-step reaction with 8 steps
1: Bu4NBr, 2,4,6-trimethylpyridine / CH2Cl2 / 96 h / 23 °C
2: NaH / dimethylformamide
4: 8 h / Heating
5: 85 percent / Me3SiOSO2Me / CH2Cl2
6: NaOMe / methanol / 4 h
7: 85 percent / 1.) NaH / dimethylformamide / 3 h / 0 °C
8: 1.) chlorine, 2,6-di-tert-butylpyridine, 4 Angstroem mol. sieves; 2.) CF3SO2OAg / 1.) CH2Cl2, CCl4, 23 deg C, 15 min; 2.) CH2Cl2, CCl4, -78 deg C, 3 h
With
2,4,6-trimethyl-pyridine; 2,6-di-tert-butyl-pyridine; 4 A molecular sieve; trimethylsilyl methanesulfonate; tetrabutylammomium bromide; sodium methylate; silver trifluoromethanesulfonate; chlorine; sodium hydride;
In
methanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1016/S0008-6215(98)00047-0
- Guidance literature:
-
Multi-step reaction with 7 steps
1: NaH / dimethylformamide
3: 8 h / Heating
4: 85 percent / Me3SiOSO2Me / CH2Cl2
5: NaOMe / methanol / 4 h
6: 85 percent / 1.) NaH / dimethylformamide / 3 h / 0 °C
7: 1.) chlorine, 2,6-di-tert-butylpyridine, 4 Angstroem mol. sieves; 2.) CF3SO2OAg / 1.) CH2Cl2, CCl4, 23 deg C, 15 min; 2.) CH2Cl2, CCl4, -78 deg C, 3 h
With
2,6-di-tert-butyl-pyridine; 4 A molecular sieve; trimethylsilyl methanesulfonate; sodium methylate; silver trifluoromethanesulfonate; chlorine; sodium hydride;
In
methanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1016/S0008-6215(98)00047-0