Technology Process of 1,3,4,5-tetra-O-benzyl-2-O-(2,4,6-tri-O-acetyl-3-O-carbamoyl-α-D-mannopyranosyl)-β-L-gulopyranoside
There total 16 articles about 1,3,4,5-tetra-O-benzyl-2-O-(2,4,6-tri-O-acetyl-3-O-carbamoyl-α-D-mannopyranosyl)-β-L-gulopyranoside which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
With
trimethylsilyl trifluoromethanesulfonate;
In
dichloromethane;
at 0 ℃;
for 0.166667h;
Inert atmosphere;
- Guidance literature:
-
Multi-step reaction with 9 steps
1.1: toluene-4-sulfonic acid / N,N-dimethyl-formamide / 1 h / 60 °C / Inert atmosphere
2.1: di(n-butyl)tin oxide / methanol / 1.5 h / Reflux; Inert atmosphere
2.2: 0.5 h / 100 °C / Inert atmosphere
3.1: sulfuric acid / 0.67 h / 20 °C / Inert atmosphere
4.1: hydrogen / 20 % Pd(OH)2/C / ethyl acetate / 760.05 Torr
5.1: dmap; pyridine / 2 h / 40 °C / Inert atmosphere
6.1: ammonia / tetrahydrofuran / 6 h / 20 °C / Inert atmosphere
7.1: benzylamine / tetrahydrofuran / 4 h / 20 °C / Inert atmosphere
8.1: n-butyllithium / tetrahydrofuran / 0.17 h / -78 °C / Inert atmosphere
8.2: -78 °C / Inert atmosphere
9.1: trimethylsilyl trifluoromethanesulfonate / dichloromethane / 0.17 h / 0 °C / Inert atmosphere
With
pyridine; dmap; n-butyllithium; trimethylsilyl trifluoromethanesulfonate; sulfuric acid; ammonia; hydrogen; di(n-butyl)tin oxide; toluene-4-sulfonic acid; benzylamine;
20 % Pd(OH)2/C;
In
tetrahydrofuran; methanol; dichloromethane; ethyl acetate; N,N-dimethyl-formamide;
-
-
3162-96-7,4148-58-7,4153-17-7,4288-93-1,5328-47-2,6988-39-2,13566-32-0,14155-23-8,27994-50-9,37093-57-5,37093-59-7,57701-27-6,59168-66-0,64552-06-3,65391-13-1,65391-14-2,65530-26-9,66512-65-0,71117-36-7,71117-37-8,71117-41-4,72904-85-9,74560-56-8,79549-74-9,86783-81-5,96093-51-5,98633-13-7,110415-35-5,110415-36-6,110850-29-8,124020-29-7,126924-12-7,129263-21-4,131433-03-9,145920-49-6,146863-04-9
methyl-4,6-O-phenylmethylene-α-D-mannopyranoside
- Guidance literature:
-
Multi-step reaction with 8 steps
1.1: di(n-butyl)tin oxide / methanol / 1.5 h / Reflux; Inert atmosphere
1.2: 0.5 h / 100 °C / Inert atmosphere
2.1: sulfuric acid / 0.67 h / 20 °C / Inert atmosphere
3.1: hydrogen / 20 % Pd(OH)2/C / ethyl acetate / 760.05 Torr
4.1: dmap; pyridine / 2 h / 40 °C / Inert atmosphere
5.1: ammonia / tetrahydrofuran / 6 h / 20 °C / Inert atmosphere
6.1: benzylamine / tetrahydrofuran / 4 h / 20 °C / Inert atmosphere
7.1: n-butyllithium / tetrahydrofuran / 0.17 h / -78 °C / Inert atmosphere
7.2: -78 °C / Inert atmosphere
8.1: trimethylsilyl trifluoromethanesulfonate / dichloromethane / 0.17 h / 0 °C / Inert atmosphere
With
pyridine; dmap; n-butyllithium; trimethylsilyl trifluoromethanesulfonate; sulfuric acid; ammonia; hydrogen; di(n-butyl)tin oxide; benzylamine;
20 % Pd(OH)2/C;
In
tetrahydrofuran; methanol; dichloromethane; ethyl acetate;