methyl 4-O-acetyl-2-azido-3-O-(2-azido-3-O-benzyl-6-O-tert-butyldimethylsilyl-2-deoxy-β-D-mannopyranosyl)-6-O-tert-butyldiphenylsilyl-2-deoxy-β-L-galactopyranoside

Base Information

• Chemical Name: methyl 4-O-acetyl-2-azido-3-O-(2-azido-3-O-benzyl-6-O-tert-butyldimethylsilyl-2-deoxy-β-D-mannopyranosyl)-6-O-tert-butyldiphenylsilyl-2-deoxy-β-L-galactopyranoside
• CAS No.: 849222-07-7
• Molecular Formula: C₄₄H₆₂N₆O₁₀Si₂
• Molecular Weight: 891.181
• Mol file: 849222-07-7.mol

Synonyms:methyl 4-O-acetyl-2-azido-3-O-(2-azido-3-O-benzyl-6-O-tert-butyldimethylsilyl-2-deoxy-β-D-mannopyranosyl)-6-O-tert-butyldiphenylsilyl-2-deoxy-β-L-galactopyranoside

Chemical Property of methyl 4-O-acetyl-2-azido-3-O-(2-azido-3-O-benzyl-6-O-tert-butyldimethylsilyl-2-deoxy-β-D-mannopyranosyl)-6-O-tert-butyldiphenylsilyl-2-deoxy-β-L-galactopyranoside

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of methyl 4-O-acetyl-2-azido-3-O-(2-azido-3-O-benzyl-6-O-tert-butyldimethylsilyl-2-deoxy-β-D-mannopyranosyl)-6-O-tert-butyldiphenylsilyl-2-deoxy-β-L-galactopyranoside

There total 11 articles about methyl 4-O-acetyl-2-azido-3-O-(2-azido-3-O-benzyl-6-O-tert-butyldimethylsilyl-2-deoxy-β-D-mannopyranosyl)-6-O-tert-butyldiphenylsilyl-2-deoxy-β-L-galactopyranoside 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:

Reference yield: 72.0%

methyl 4-O-acetyl-2-azido-3-O-(2-azido-3-O-benzyl-2-deoxy-β-D-mannopyranosyl)-6-O-tert-butyldiphenylsilyl-2-deoxy-β-L-galactopyranoside (849222-06-6) + tert-butyldimethylsilyl chloride (18162-48-6) → methyl 4-O-acetyl-2-azido-3-O-(2-azido-3-O-benzyl-6-O-tert-butyldimethylsilyl-2-deoxy-β-D-mannopyranosyl)-6-O-tert-butyldiphenylsilyl-2-deoxy-β-L-galactopyranoside (849222-07-7)

Guidance literature:

With pyridine; dmap; for 6h;

DOI:10.1002/chem.200400862

Reference yield:

(2S,3S,4S,5S,6S)-5-Azido-2-hydroxymethyl-6-methoxy-tetrahydro-pyran-3,4-diol → methyl 4-O-acetyl-2-azido-3-O-(2-azido-3-O-benzyl-6-O-tert-butyldimethylsilyl-2-deoxy-β-D-mannopyranosyl)-6-O-tert-butyldiphenylsilyl-2-deoxy-β-L-galactopyranoside (849222-07-7)

Guidance literature:

Multi-step reaction with 6 steps

1: 1.00 g / pyridine / 4 h

2: CSA / dimethylformamide / 1 h

3: 943 mg / aq. AcOH / 0.25 h

4: 53 percent / 1-benzenesulfinyl piperidine; tri-tert-butylpyrimidine; Tf₂O / 3 Angstroem molecular sieves / CH₂Cl₂ / -60 - 20 °C

5: 62 percent / CSA / tetrahydrofuran; methanol / 18 h

6: 72 percent / DMAP; pyridine / 6 h

With pyridine; dmap; 1-benzenesulfinyl piperidine; trifluoromethylsulfonic anhydride; 2,4,5-tri-tert-butylpyrimidine; camphor-10-sulfonic acid; acetic acid; 3 A molecular sieve; In tetrahydrofuran; methanol; dichloromethane; N,N-dimethyl-formamide;

DOI:10.1002/chem.200400862

Reference yield:

methyl 3,4,6-tri-O-acetyl-2-azido-2-deoxy-β-L-galactopyranoside (849222-01-1) → methyl 4-O-acetyl-2-azido-3-O-(2-azido-3-O-benzyl-6-O-tert-butyldimethylsilyl-2-deoxy-β-D-mannopyranosyl)-6-O-tert-butyldiphenylsilyl-2-deoxy-β-L-galactopyranoside (849222-07-7)

Guidance literature:

Multi-step reaction with 7 steps

1: t-BuOK / methanol / 1 h

2: 1.00 g / pyridine / 4 h

3: CSA / dimethylformamide / 1 h

4: 943 mg / aq. AcOH / 0.25 h

5: 53 percent / 1-benzenesulfinyl piperidine; tri-tert-butylpyrimidine; Tf₂O / 3 Angstroem molecular sieves / CH₂Cl₂ / -60 - 20 °C

6: 62 percent / CSA / tetrahydrofuran; methanol / 18 h

7: 72 percent / DMAP; pyridine / 6 h

With pyridine; dmap; 1-benzenesulfinyl piperidine; trifluoromethylsulfonic anhydride; 2,4,5-tri-tert-butylpyrimidine; camphor-10-sulfonic acid; potassium tert-butylate; acetic acid; 3 A molecular sieve; In tetrahydrofuran; methanol; dichloromethane; N,N-dimethyl-formamide;

DOI:10.1002/chem.200400862

upstream raw materials:

methyl 4-O-acetyl-2-azido-3-O-(2-azido-3-O-benzyl-2-deoxy-β-D-mannopyranosyl)-6-O-tert-butyldiphenylsilyl-2-deoxy-β-L-galactopyranoside

tert-butyldimethylsilyl chloride

methyl 3,4,6-tri-O-acetyl-2-azido-2-deoxy-β-L-galactopyranoside

Acetic acid (2S,3R,4R,5S)-3,5-diacetoxy-2-acetoxymethyl-6-bromo-tetrahydro-pyran-4-yl ester

Downstream raw materials:

methyl 4-O-acetyl-2-azido-3-O-{2-azido-3-O-benzyl-4-O-(3-O-benzyl-4,6-O-benzylidene-2-deoxy-2-phthalimido-β-D-glucopyranosyl)-6-O-tert-butyldimethylsilyl-2-deoxy-β-D-mannopyranosyl}-6-O-tert-butyldiphenylsilyl-2-deoxy-β-L-galactopyranoside

methyl 2-acetamido-4-O-acetyl-3-O-{2-acetamido-3-O-benzyl-4-O-(2-acetamido-3-O-benzyl-4,6-O-benzylidene-2-deoxy-β-D-glucopyranosyl)-6-O-tert-butyldimethylsilyl-2-deoxy-β-D-mannopyranosyl}-6-O-tert-butyldiphenylsilyl-2-deoxy-β-L-galactopyranoside

methyl 4-O-acetyl-2-azido-3-O-{2-azido-3-O-benzyl-4-O-(2-acetamido-3-O-benzyl-4,6-O-benzylidene-2-deoxy-β-D-glucopyranosyl)-6-O-tert-butyldimethylsilyl-2-deoxy-β-D-mannopyranosyl}-6-O-tert-butyldiphenylsilyl-2-deoxy-β-L-galactopyranoside

C₄₈H₅₇N₃O₁₉