7-<(R)-2-<3-(3,4-diacetoxybenzoyl)-3-methylureido>-2-(4-hydroxyphenyl)acetamido>-3-<(1-methyl-1H-tetrazol-5-yl)thiomethyl>-3-cephem-4-carboxylic acid

Base Information

• Chemical Name: 7-<(R)-2-<3-(3,4-diacetoxybenzoyl)-3-methylureido>-2-(4-hydroxyphenyl)acetamido>-3-<(1-methyl-1H-tetrazol-5-yl)thiomethyl>-3-cephem-4-carboxylic acid
• CAS No.: 77119-49-4
• Molecular Formula: C₃₁H₃₀N₈O₁₁S₂
• Molecular Weight: 754.758
• Mol file: 77119-49-4.mol

Synonyms:

Chemical Property of 7-<(R)-2-<3-(3,4-diacetoxybenzoyl)-3-methylureido>-2-(4-hydroxyphenyl)acetamido>-3-<(1-methyl-1H-tetrazol-5-yl)thiomethyl>-3-cephem-4-carboxylic acid

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 7-<(R)-2-<3-(3,4-diacetoxybenzoyl)-3-methylureido>-2-(4-hydroxyphenyl)acetamido>-3-<(1-methyl-1H-tetrazol-5-yl)thiomethyl>-3-cephem-4-carboxylic acid

There total 2 articles about 7-<(R)-2-<3-(3,4-diacetoxybenzoyl)-3-methylureido>-2-(4-hydroxyphenyl)acetamido>-3-<(1-methyl-1H-tetrazol-5-yl)thiomethyl>-3-cephem-4-carboxylic acid 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:

(R)-2-<3-(3,4-diacetoxybenzoyl)-3-methylureido>-2-(4-hydroxyphenyl)acetic acid (73547-50-9) → 7-<(R)-2-<3-(3,4-diacetoxybenzoyl)-3-methylureido>-2-(4-hydroxyphenyl)acetamido>-3-<(1-methyl-1H-tetrazol-5-yl)thiomethyl>-3-cephem-4-carboxylic acid (77119-49-4)

Guidance literature:

Multi-step reaction with 2 steps

1: DCC / tetrahydrofuran / 1 h / 0 - 5 °C

2: 1.) N,O-bis(trimethylsilyl) acetamide/trimethylchlorosilane / 1.) CH₂Cl₂, RT, 5 min, 5 deg C, 1 h; 2.) CH₂Cl₂/THF, 5-10 deg C, 3 h

With chloro-trimethyl-silane; N,O-bis-(trimethylsilyl)-acetamide; dicyclohexyl-carbodiimide; In tetrahydrofuran;

DOI:10.1248/cpb.35.1903

Reference yield:

[3-(3,4-Diacetoxy-benzoyl)-3-methyl-ureido]-(4-hydroxy-phenyl)-acetic acid benzotriazol-1-yl ester + 3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-7-amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (24209-38-9) → 7-<(R)-2-<3-(3,4-diacetoxybenzoyl)-3-methylureido>-2-(4-hydroxyphenyl)acetamido>-3-<(1-methyl-1H-tetrazol-5-yl)thiomethyl>-3-cephem-4-carboxylic acid (77119-49-4)

Guidance literature:

With chloro-trimethyl-silane; N,O-bis-(trimethylsilyl)-acetamide; Yield given. Multistep reaction; 1.) CH₂Cl₂, RT, 5 min, 5 deg C, 1 h; 2.) CH₂Cl₂/THF, 5-10 deg C, 3 h;

DOI:10.1248/cpb.35.1903

upstream raw materials:

3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-7-amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

(R)-2-<3-(3,4-diacetoxybenzoyl)-3-methylureido>-2-(4-hydroxyphenyl)acetic acid