Acetic acid (2R,3R,4S,5R,6S)-4,5-bis-benzyloxy-6-methoxy-2-[2-((2S,3S,4R,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-ethyl]-tetrahydro-pyran-3-yl ester

Base Information

Chemical Name:Acetic acid (2R,3R,4S,5R,6S)-4,5-bis-benzyloxy-6-methoxy-2-[2-((2S,3S,4R,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-ethyl]-tetrahydro-pyran-3-yl ester
CAS No.:139195-54-3
Molecular Formula:C₅₈H₆₄O₁₁
Molecular Weight:937.14
Hs Code.:

Acetic acid (2R,3R,4S,5R,6S)-4,5-bis-benzyloxy-6-methoxy-2-[2-((2S,3S,4R,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-ethyl]-tetrahydro-pyran-3-yl ester

Synonyms:Acetic acid (2R,3R,4S,5R,6S)-4,5-bis-benzyloxy-6-methoxy-2-[2-((2S,3S,4R,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-ethyl]-tetrahydro-pyran-3-yl ester

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Chemical Property of Acetic acid (2R,3R,4S,5R,6S)-4,5-bis-benzyloxy-6-methoxy-2-[2-((2S,3S,4R,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-ethyl]-tetrahydro-pyran-3-yl ester

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Technology Process of Acetic acid (2R,3R,4S,5R,6S)-4,5-bis-benzyloxy-6-methoxy-2-[2-((2S,3S,4R,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-ethyl]-tetrahydro-pyran-3-yl ester

There total 7 articles about Acetic acid (2R,3R,4S,5R,6S)-4,5-bis-benzyloxy-6-methoxy-2-[2-((2S,3S,4R,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-ethyl]-tetrahydro-pyran-3-yl 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: 89.0%

: 108-24-7
acetic anhydride

: 139215-65-9
(2R,3R,4S,5R,6S)-4,5-Bis-benzyloxy-6-methoxy-2-[2-((2S,3S,4R,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-ethyl]-tetrahydro-pyran-3-ol

: 139195-54-3
Acetic acid (2R,3R,4S,5R,6S)-4,5-bis-benzyloxy-6-methoxy-2-[2-((2S,3S,4R,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-ethyl]-tetrahydro-pyran-3-yl ester

Guidance literature:: With pyridine; dmap; Ambient temperature;
DOI:10.1021/jo00022a039

Reference yield:

: 13096-62-3
(3R,4S,5R,6R)-3,4,5-tris(benzyloxy)-6-((benzyloxy)methyl)tetrahydro-2H-pyran-2-one

: 139195-54-3
Acetic acid (2R,3R,4S,5R,6S)-4,5-bis-benzyloxy-6-methoxy-2-[2-((2S,3S,4R,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-ethyl]-tetrahydro-pyran-3-yl ester

Guidance literature:: Multi-step reaction with 4 steps

1: 1.) n-BuLi / 1.) THF, -50 deg C to 0 deg C, 1 min, 2.) THF, -50 deg C, 30 min

2: 69 percent / triethylsilane / BF₃*Et₂O / acetonitrile; CH₂Cl₂ / 0 °C

3: 89 percent / potassium azodicarboxylate, acetic acid / dioxane / 24 h / Ambient temperature

4: 89 percent / pyridine / DMAP / Ambient temperature

With pyridine; triethylsilane; n-butyllithium; potassium diazodicarboxylate; acetic acid; dmap; boron trifluoride diethyl etherate; In 1,4-dioxane; dichloromethane; acetonitrile;
DOI:10.1021/jo00022a039

Reference yield:

: 130523-98-7
(2S,3S,4S,5R,6S)-4,5-Bis-benzyloxy-6-methoxy-3-(4-methoxy-benzyloxy)-tetrahydro-pyran-2-carbaldehyde

: 139195-54-3
Acetic acid (2R,3R,4S,5R,6S)-4,5-bis-benzyloxy-6-methoxy-2-[2-((2S,3S,4R,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-ethyl]-tetrahydro-pyran-3-yl ester

Guidance literature:: Multi-step reaction with 5 steps

1: 1.) Ph₃P / 1.) CH₂Cl₂, room temperature, 20 min, 2.) CH₂Cl₂, a) 0 deg C, 5 min, b) room temperature, 25 min

2: 1.) n-BuLi / 1.) THF, -50 deg C to 0 deg C, 1 min, 2.) THF, -50 deg C, 30 min

3: 69 percent / triethylsilane / BF₃*Et₂O / acetonitrile; CH₂Cl₂ / 0 °C

4: 89 percent / potassium azodicarboxylate, acetic acid / dioxane / 24 h / Ambient temperature

5: 89 percent / pyridine / DMAP / Ambient temperature

With pyridine; triethylsilane; n-butyllithium; potassium diazodicarboxylate; acetic acid; triphenylphosphine; dmap; boron trifluoride diethyl etherate; In 1,4-dioxane; dichloromethane; acetonitrile;
DOI:10.1021/jo00022a039