(2R,3S,4S,5R,6R)-5-Acetoxy-6-((2R,3R,4S,5R)-6-acetoxy-2-acetoxymethyl-5-benzyloxy-4-methoxy-tetrahydro-pyran-3-yloxy)-3,4-dimethoxy-tetrahydro-pyran-2-carboxylic acid benzyl ester

Base Information

• Chemical Name: (2R,3S,4S,5R,6R)-5-Acetoxy-6-((2R,3R,4S,5R)-6-acetoxy-2-acetoxymethyl-5-benzyloxy-4-methoxy-tetrahydro-pyran-3-yloxy)-3,4-dimethoxy-tetrahydro-pyran-2-carboxylic acid benzyl ester
• CAS No.: 209802-87-9
• Molecular Formula: C₃₅H₄₄O₁₅
• Molecular Weight: 704.725

Synonyms:(2R,3S,4S,5R,6R)-5-Acetoxy-6-((2R,3R,4S,5R)-6-acetoxy-2-acetoxymethyl-5-benzyloxy-4-methoxy-tetrahydro-pyran-3-yloxy)-3,4-dimethoxy-tetrahydro-pyran-2-carboxylic acid benzyl ester

Chemical Property of (2R,3S,4S,5R,6R)-5-Acetoxy-6-((2R,3R,4S,5R)-6-acetoxy-2-acetoxymethyl-5-benzyloxy-4-methoxy-tetrahydro-pyran-3-yloxy)-3,4-dimethoxy-tetrahydro-pyran-2-carboxylic acid benzyl ester

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Technology Process of (2R,3S,4S,5R,6R)-5-Acetoxy-6-((2R,3R,4S,5R)-6-acetoxy-2-acetoxymethyl-5-benzyloxy-4-methoxy-tetrahydro-pyran-3-yloxy)-3,4-dimethoxy-tetrahydro-pyran-2-carboxylic acid benzyl ester

There total 1 articles about (2R,3S,4S,5R,6R)-5-Acetoxy-6-((2R,3R,4S,5R)-6-acetoxy-2-acetoxymethyl-5-benzyloxy-4-methoxy-tetrahydro-pyran-3-yloxy)-3,4-dimethoxy-tetrahydro-pyran-2-carboxylic acid benzyl 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:

acetic anhydride (108-24-7) + (2R,3S,4S,5R,6R)-5-Acetoxy-6-((2R,3R,4S,5R,6S)-5-benzyloxy-2-benzyloxymethyl-4,6-dimethoxy-tetrahydro-pyran-3-yloxy)-3,4-dimethoxy-tetrahydro-pyran-2-carboxylic acid benzyl ester → (2R,3S,4S,5R,6R)-5-Acetoxy-6-((2R,3R,4S,5R)-6-acetoxy-2-acetoxymethyl-5-benzyloxy-4-methoxy-tetrahydro-pyran-3-yloxy)-3,4-dimethoxy-tetrahydro-pyran-2-carboxylic acid benzyl ester (209802-87-9)

Guidance literature:

With sulfuric acid; at -20 ℃; for 0.25h;

DOI:10.1016/S0960-894X(98)00196-6

Reference yield: 84.0%

(2R,3S,4S,5R,6R)-5-Acetoxy-6-((2R,3R,4S,5R)-6-acetoxy-2-acetoxymethyl-5-benzyloxy-4-methoxy-tetrahydro-pyran-3-yloxy)-3,4-dimethoxy-tetrahydro-pyran-2-carboxylic acid benzyl ester (209802-87-9) → (2R,3S,4S,5R,6R)-5-Acetoxy-6-((2R,3R,4S,5R)-2-acetoxymethyl-5-benzyloxy-6-hydroxy-4-methoxy-tetrahydro-pyran-3-yloxy)-3,4-dimethoxy-tetrahydro-pyran-2-carboxylic acid benzyl ester

Guidance literature:

With piperidine; In tetrahydrofuran; for 48h; Ambient temperature;

DOI:10.1016/S0960-894X(98)00196-6

Reference yield:

(2R,3S,4S,5R,6R)-5-Acetoxy-6-((2R,3R,4S,5R)-6-acetoxy-2-acetoxymethyl-5-benzyloxy-4-methoxy-tetrahydro-pyran-3-yloxy)-3,4-dimethoxy-tetrahydro-pyran-2-carboxylic acid benzyl ester (209802-87-9) → (2R,3S,4S,5R,6R)-5-Acetoxy-6-[(2R,3R,4S,5R)-2-acetoxymethyl-5-benzyloxy-4-methoxy-6-(2,2,2-trichloro-acetimidoyloxy)-tetrahydro-pyran-3-yloxy]-3,4-dimethoxy-tetrahydro-pyran-2-carboxylic acid benzyl ester

Guidance literature:

Multi-step reaction with 2 steps

1: 84 percent / piperidine / tetrahydrofuran / 48 h / Ambient temperature

2: 74 percent / Cs₂CO₃ / CH₂Cl₂ / 1 h

With piperidine; caesium carbonate; In tetrahydrofuran; dichloromethane;

DOI:10.1016/S0960-894X(98)00196-6

upstream raw materials:

acetic anhydride

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