4-nitrobenzyl-(7β)-3-methyl-7--3-cephem-4-carboxylate

Base Information

• Chemical Name: 4-nitrobenzyl-(7β)-3-methyl-7--3-cephem-4-carboxylate
• CAS No.: 121464-37-7
• Molecular Formula: C₂₀H₂₃N₃O₇S
• Molecular Weight: 449.485

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Chemical Property of 4-nitrobenzyl-(7β)-3-methyl-7--3-cephem-4-carboxylate

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Technology Process of 4-nitrobenzyl-(7β)-3-methyl-7--3-cephem-4-carboxylate

There total 6 articles about 4-nitrobenzyl-(7β)-3-methyl-7--3-cephem-4-carboxylate 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: 71.0%

4-nitrobenzyl-(7β)-3-methyl-7--3-cephem-4-carboxylate (121464-27-5) → 4-nitrobenzyl-(7β)-3-methyl-7--2-cephem-4-carboxylate (121484-64-8) + 4-nitrobenzyl-(7β)-3-methyl-7--3-cephem-4-carboxylate (121464-37-7)

Guidance literature:

With N,N-diethylethylenediamine; In dichloromethane; for 13h; Ambient temperature;

Reference yield: 27.0%

(6R,7R)-7-[tert-Butoxycarbonyl-(2-chloro-acetyl)-amino]-3-methyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid 4-nitro-benzyl ester (121464-29-7) + thiourea (17356-08-0) → 4-nitrobenzyl-(7β)-3-methyl-7--3-cephem-4-carboxylate (121464-37-7) + (6R,7R)-7-[(2-Amino-thiazol-4-yl)-tert-butoxycarbonyl-amino]-3-methyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid 4-nitro-benzyl ester (121464-38-8)

Guidance literature:

In ethanol; at 60 ℃; for 1h;

Reference yield: 24.0%

(6R,7R)-7-[tert-Butoxycarbonyl-(2-chloro-acetyl)-amino]-3-methyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid 4-nitro-benzyl ester (121464-29-7) → 4-nitrobenzyl-(7β)-3-methyl-7--3-cephem-4-carboxylate (121464-37-7) + (6R,7R)-7-[(2-Amino-thiazol-4-yl)-tert-butoxycarbonyl-amino]-3-methyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid 4-nitro-benzyl ester (121464-38-8)

Guidance literature:

With thiourea; In ethanol; at 60 ℃; for 1h;

upstream raw materials:

(6R,7R)-7-[tert-Butoxycarbonyl-(2-chloro-acetyl)-amino]-3-methyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid 4-nitro-benzyl ester

4-nitrobenzyl-(7β)-3-methyl-7--3-cephem-4-carboxylate

thiourea

di-tert-butyl dicarbonate

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