(3S,4R,5S,6R)-5-Acetylamino-4-benzyloxy-2-bromo-3-phenylsulfanyl-6-((1S,2R)-1,2,3-tris-benzyloxy-propyl)-tetrahydro-pyran-2-carboxylic acid methyl ester

Base Information

• Chemical Name: (3S,4R,5S,6R)-5-Acetylamino-4-benzyloxy-2-bromo-3-phenylsulfanyl-6-((1S,2R)-1,2,3-tris-benzyloxy-propyl)-tetrahydro-pyran-2-carboxylic acid methyl ester
• CAS No.: 120308-53-4
• Molecular Formula: C₄₆H₄₈BrNO₈S
• Molecular Weight: 854.859
• Mol file: 120308-53-4.mol

Synonyms:(3S,4R,5S,6R)-5-Acetylamino-4-benzyloxy-2-bromo-3-phenylsulfanyl-6-((1S,2R)-1,2,3-tris-benzyloxy-propyl)-tetrahydro-pyran-2-carboxylic acid methyl ester

Chemical Property of (3S,4R,5S,6R)-5-Acetylamino-4-benzyloxy-2-bromo-3-phenylsulfanyl-6-((1S,2R)-1,2,3-tris-benzyloxy-propyl)-tetrahydro-pyran-2-carboxylic acid methyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (3S,4R,5S,6R)-5-Acetylamino-4-benzyloxy-2-bromo-3-phenylsulfanyl-6-((1S,2R)-1,2,3-tris-benzyloxy-propyl)-tetrahydro-pyran-2-carboxylic acid methyl ester

There total 15 articles about (3S,4R,5S,6R)-5-Acetylamino-4-benzyloxy-2-bromo-3-phenylsulfanyl-6-((1S,2R)-1,2,3-tris-benzyloxy-propyl)-tetrahydro-pyran-2-carboxylic acid methyl ester 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: 97.0%

methyl 5-acetamido-4,7,8,9-tetra-O-benzyl-3,5-dideoxy-3-phenylthio-D-erythro-β-L-gluco-2-nonulopyranosonate (139684-71-2) → (3S,4R,5S,6R)-5-Acetylamino-4-benzyloxy-2-bromo-3-phenylsulfanyl-6-((1S,2R)-1,2,3-tris-benzyloxy-propyl)-tetrahydro-pyran-2-carboxylic acid methyl ester (120308-53-4)

Guidance literature:

With carbon tetrabromide; Hexamethylphosphorous triamide; In tetrahydrofuran; from -78 deg C to 20 deg C;

DOI:10.1016/S0040-4039(00)80400-1

Reference yield: 97.0%

methyl 5-acetamido-4,7,8,9-tetra-O-benzyl-3,5-dideoxy-3-phenylthio-D-erythro-β-L-gluco-2-nonulopyranosonate (139684-71-2) → methyl 5-acetamido-4,7,8,9-tetra-O-benzyl-2-bromo-2,3,5-trideoxy-3-phenylthio-D-erythro-β-L-gluco-2-nonulopyranosonate (120308-53-4,123284-43-5)

Guidance literature:

With carbon tetrabromide; Hexamethylphosphorous triamide; In tetrahydrofuran; -78 deg C -> room temp. (3h);

DOI:10.1016/S0040-4020(01)97586-6

Reference yield:

methyl 5-acetamido-4,7,8,9-tetra-O-benzyl-2,3,5-trideoxy-2-fluoro-3-phenylseleno-D-erythro-α-L-gluco-nonulopyranosate (116096-67-4,116180-63-3,125356-39-0,125356-40-3,128658-86-6) → methyl 5-acetamido-4,7,8,9-tetra-O-benzyl-2-bromo-2,3,5-trideoxy-3-phenylthio-D-erythro-β-L-gluco-2-nonulopyranosonate (120308-53-4,123284-43-5)

Guidance literature:

Multi-step reaction with 5 steps

1: 19 percent / AgOSO₂CF₃, SnCl₂ / CCl₄ / molecular sieves; -20 deg, 30 min, then 0 deg C, 30 min, then room temp., 2h

2: 78 percent / N-bromosuccinimide / acetonitrile; H₂O / 0.5 h / 60 °C

3: 4.23 g / t-BuOK / 2-methyl-propan-2-ol; tetrahydrofuran / 0 deg C, 2h, then room temp., 1h

4: DBU / toluene / 0 deg C, 2h, then room temp., 30 min.

5: 97 percent / (Me₂N)3P, CBr₄ / tetrahydrofuran / -78 deg C -> room temp. (3h)

With N-Bromosuccinimide; carbon tetrabromide; potassium tert-butylate; silver trifluoromethanesulfonate; 1,8-diazabicyclo[5.4.0]undec-7-ene; tin(ll) chloride; Hexamethylphosphorous triamide; In tetrahydrofuran; tetrachloromethane; water; toluene; acetonitrile; tert-butyl alcohol;

DOI:10.1016/S0040-4020(01)97586-6

upstream raw materials:

methyl 5-acetamido-4,7,8,9-tetra-O-benzyl-3,5-dideoxy-3-phenylthio-D-erythro-β-L-gluco-2-nonulopyranosonate

5-acetamido-4,7,8,9-tetra-O-benzyl-2,3-dehydro-3,5-dideoxy-D-glycero-D-galacto-2-nonulopyranosonic acid

methyl 5-acetamido-4,7,8,9-tetra-O-benzyl-2,3-dehydro-3,5-dideoxy-D-glycero-D-galacto-2-nonulopyranosonate

methyl 5-acetamido-4,7,8,9-tetra-O-benzyl-3-bromo-3,5-dideoxy-D-erythro-L-manno-2-nonulopyranosonate

Downstream raw materials:

(2R,3S,4R,5S,6R)-5-Acetylamino-4-benzyloxy-3-phenylsulfanyl-2-((2R,3R,4S,5S,6R)-2,3,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-4-yloxy)-6-((1S,2R)-1,2,3-tris-benzyloxy-propyl)-tetrahydro-pyran-2-carboxylic acid methyl ester

C₁₀₀H₁₀₅NO₁₉S

C₁₀₀H₁₀₅NO₁₉S

O--(2->6)-1,2;3,4-di-O-isopropylidene-α-D-galactopyranose