8-ethoxycarbonyloctyl-<2-acetamido-4,6-di-O-benzoyl-2-desoxy-3-O-(2,3,4,6-tetra-O-acetyl-α-D-galactopyranosyl)-α-D-galactopyranosyd>

Base Information

Chemical Name:8-ethoxycarbonyloctyl-<2-acetamido-4,6-di-O-benzoyl-2-desoxy-3-O-(2,3,4,6-tetra-O-acetyl-α-D-galactopyranosyl)-α-D-galactopyranosyd>
CAS No.:117193-57-4
Molecular Formula:C₄₇H₆₁NO₁₉
Molecular Weight:943.997
Hs Code.:

Synonyms:8-ethoxycarbonyloctyl-<2-acetamido-4,6-di-O-benzoyl-2-desoxy-3-O-(2,3,4,6-tetra-O-acetyl-α-D-galactopyranosyl)-α-D-galactopyranosyd>

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Chemical Property of 8-ethoxycarbonyloctyl-<2-acetamido-4,6-di-O-benzoyl-2-desoxy-3-O-(2,3,4,6-tetra-O-acetyl-α-D-galactopyranosyl)-α-D-galactopyranosyd>

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Technology Process of 8-ethoxycarbonyloctyl-<2-acetamido-4,6-di-O-benzoyl-2-desoxy-3-O-(2,3,4,6-tetra-O-acetyl-α-D-galactopyranosyl)-α-D-galactopyranosyd>

There total 6 articles about 8-ethoxycarbonyloctyl-<2-acetamido-4,6-di-O-benzoyl-2-desoxy-3-O-(2,3,4,6-tetra-O-acetyl-α-D-galactopyranosyl)-α-D-galactopyranosyd> 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: 84.0%

: 108-24-7
acetic anhydride

: 117193-56-3
8-ethoxycarbonyloctyl-<2-azido-4,6-di-O-benzoyl-2-desoxy-3-O-(3,4,6-tri-O-acetyl-α-D-galactopyranosyl)-α-D-galactopyranosyd>

: 117193-57-4
8-ethoxycarbonyloctyl-<2-acetamido-4,6-di-O-benzoyl-2-desoxy-3-O-(2,3,4,6-tetra-O-acetyl-α-D-galactopyranosyl)-α-D-galactopyranosyd>

Guidance literature:: With hydrogen sulfide; In pyridine; water; for 2h;
DOI:10.1016/0008-6215(88)80168-X

Reference yield:

: 53872-78-9
3,4,6-tetra-O-acetyl-2-O-benzyl-α-D-galactopyranosyl bromide

: 117193-57-4
8-ethoxycarbonyloctyl-<2-acetamido-4,6-di-O-benzoyl-2-desoxy-3-O-(2,3,4,6-tetra-O-acetyl-α-D-galactopyranosyl)-α-D-galactopyranosyd>

Guidance literature:: Multi-step reaction with 5 steps

1: 85 percent / Ag₂CO₃, AgClO₄, molecular sieve 4A / CH₂Cl₂ / 42 h

2: 88 percent / H₂SO₄ / 24 h

3: 53 percent / TiBr₄ / CH₂Cl₂; ethyl acetate / 84 h

4: 54 percent / HgBr₂, molecular sieve 4A / CH₂Cl₂ / 62 h

5: 84 percent / H₂S / pyridine; H₂O / 2 h

With 4 A molecular sieve; sulfuric acid; hydrogen sulfide; silver perchlorate; titanium(IV) bromide; silver carbonate; mercury dibromide; In pyridine; dichloromethane; water; ethyl acetate;
DOI:10.1016/0008-6215(88)80168-X

Reference yield:

: 87376-51-0
methyl 2-azido-4,6-di-O-benzoyl-2-desoxy-β-D-galactopyranosyde

: 117193-57-4
8-ethoxycarbonyloctyl-<2-acetamido-4,6-di-O-benzoyl-2-desoxy-3-O-(2,3,4,6-tetra-O-acetyl-α-D-galactopyranosyl)-α-D-galactopyranosyd>

Guidance literature:: Multi-step reaction with 5 steps

1: 85 percent / Ag₂CO₃, AgClO₄, molecular sieve 4A / CH₂Cl₂ / 42 h

2: 88 percent / H₂SO₄ / 24 h

3: 53 percent / TiBr₄ / CH₂Cl₂; ethyl acetate / 84 h

4: 54 percent / HgBr₂, molecular sieve 4A / CH₂Cl₂ / 62 h

5: 84 percent / H₂S / pyridine; H₂O / 2 h

With 4 A molecular sieve; sulfuric acid; hydrogen sulfide; silver perchlorate; titanium(IV) bromide; silver carbonate; mercury dibromide; In pyridine; dichloromethane; water; ethyl acetate;
DOI:10.1016/0008-6215(88)80168-X