(2S,3R,6R,7R)-3,4-Dibromo-3-methyl-5,5,8-trioxo-7-(2-phenoxy-acetylamino)-5λ⁶-thia-1-aza-bicyclo[4.2.0]octane-2-carboxylic acid tert-butyl ester

Base Information

• Chemical Name: (2S,3R,6R,7R)-3,4-Dibromo-3-methyl-5,5,8-trioxo-7-(2-phenoxy-acetylamino)-5λ⁶-thia-1-aza-bicyclo[4.2.0]octane-2-carboxylic acid tert-butyl ester
• CAS No.: 144262-07-7
• Molecular Formula: C₂₀H₂₄Br₂N₂O₇S
• Molecular Weight: 596.294

Synonyms:

Chemical Property of (2S,3R,6R,7R)-3,4-Dibromo-3-methyl-5,5,8-trioxo-7-(2-phenoxy-acetylamino)-5λ⁶-thia-1-aza-bicyclo[4.2.0]octane-2-carboxylic acid tert-butyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
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MSDS Files:

Useful:

Technology Process of (2S,3R,6R,7R)-3,4-Dibromo-3-methyl-5,5,8-trioxo-7-(2-phenoxy-acetylamino)-5λ⁶-thia-1-aza-bicyclo[4.2.0]octane-2-carboxylic acid tert-butyl ester

There total 3 articles about (2S,3R,6R,7R)-3,4-Dibromo-3-methyl-5,5,8-trioxo-7-(2-phenoxy-acetylamino)-5λ⁶-thia-1-aza-bicyclo[4.2.0]octane-2-carboxylic acid tert-butyl 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:

(2S,3R,6R,7R)-3,4-Dibromo-3-methyl-5,8-dioxo-7-(2-phenoxy-acetylamino)-5λ4-thia-1-aza-bicyclo[4.2.0]octane-2-carboxylic acid tert-butyl ester → (2S,3R,6R,7R)-3,4-Dibromo-3-methyl-5,5,8-trioxo-7-(2-phenoxy-acetylamino)-5λ6-thia-1-aza-bicyclo[4.2.0]octane-2-carboxylic acid tert-butyl ester (144262-07-7)

Guidance literature:

With 3-chloro-benzenecarboperoxoic acid; In dichloromethane; for 5h; Yield given; Heating;

DOI:10.3987/COM-92-6025

Reference yield:

tert-butyl-3-methyl-7-phenoxyacetamido-2-cephem-4-carboxylate (24647-38-9) → (2S,3R,6R,7R)-3,4-Dibromo-3-methyl-5,5,8-trioxo-7-(2-phenoxy-acetylamino)-5λ6-thia-1-aza-bicyclo[4.2.0]octane-2-carboxylic acid tert-butyl ester (144262-07-7)

Guidance literature:

Multi-step reaction with 3 steps

1: 75 percent / bromine, Na₂CO₃ / CH₂Cl₂ / 0.08 h / Ambient temperature

2: MCPBA / CH₂Cl₂ / 4 h / Ambient temperature

3: MCPBA / CH₂Cl₂ / 5 h / Heating

With bromine; sodium carbonate; 3-chloro-benzenecarboperoxoic acid; In dichloromethane;

DOI:10.3987/COM-92-6025

Reference yield:

(2S,3R,6R,7R)-3,4-Dibromo-3-methyl-8-oxo-7-(2-phenoxy-acetylamino)-5-thia-1-aza-bicyclo[4.2.0]octane-2-carboxylic acid tert-butyl ester (144262-06-6,144262-10-2) → (2S,3R,6R,7R)-3,4-Dibromo-3-methyl-5,5,8-trioxo-7-(2-phenoxy-acetylamino)-5λ6-thia-1-aza-bicyclo[4.2.0]octane-2-carboxylic acid tert-butyl ester (144262-07-7)

Guidance literature:

Multi-step reaction with 2 steps

1: MCPBA / CH₂Cl₂ / 4 h / Ambient temperature

2: MCPBA / CH₂Cl₂ / 5 h / Heating

With 3-chloro-benzenecarboperoxoic acid; In dichloromethane;

DOI:10.3987/COM-92-6025

upstream raw materials:

tert-butyl-3-methyl-7-phenoxyacetamido-2-cephem-4-carboxylate

(2S,3R,6R,7R)-3,4-Dibromo-3-methyl-8-oxo-7-(2-phenoxy-acetylamino)-5-thia-1-aza-bicyclo[4.2.0]octane-2-carboxylic acid tert-butyl ester

Downstream raw materials:

(6R,7R)-3-Methyl-5,5,8-trioxo-7-(2-phenoxy-acetylamino)-5λ⁶-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid tert-butyl ester

t-butyl 3-methyl-7-phenoxyacetamido-2-bromo-3-cephem-4-carboxylate 1,1-dioxide

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