(2S,5R,6S)-6-((R)-1-Hydroxy-ethyl)-3,3-dimethyl-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester

Base Information

• Chemical Name: (2S,5R,6S)-6-((R)-1-Hydroxy-ethyl)-3,3-dimethyl-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester
• CAS No.: 174231-06-2
• Molecular Formula: C₁₇H₂₀N₂O₆S
• Molecular Weight: 380.422
• Mol file: 174231-06-2.mol

Synonyms:(2S,5R,6S)-6-((R)-1-Hydroxy-ethyl)-3,3-dimethyl-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester

Chemical Property of (2S,5R,6S)-6-((R)-1-Hydroxy-ethyl)-3,3-dimethyl-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (2S,5R,6S)-6-((R)-1-Hydroxy-ethyl)-3,3-dimethyl-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester

There total 3 articles about (2S,5R,6S)-6-((R)-1-Hydroxy-ethyl)-3,3-dimethyl-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-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: 95.0%

(2S,5R,6S)-6-Bromo-6-((R)-1-hydroxy-ethyl)-3,3-dimethyl-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester (174231-05-1) → (2S,5R,6S)-6-((R)-1-Hydroxy-ethyl)-3,3-dimethyl-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester (174231-06-2)

Guidance literature:

With tributylphosphine; In methanol; at 0 ℃; for 0.5h;

DOI:10.1021/ol000185e

Reference yield: 95.0%

C17H19BrN2O6S (302904-78-5) → (2S,5R,6S)-6-((R)-1-Hydroxy-ethyl)-3,3-dimethyl-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester (174231-06-2)

Guidance literature:

With methanol; tributylphosphine; at 0 ℃; diastereoselective reaction;

DOI:10.1016/j.bmcl.2009.04.034

Reference yield:

4-Nitrobenzyl 6,6-dibromopenicillanate (98510-71-5) → (2S,5R,6S)-6-((R)-1-Hydroxy-ethyl)-3,3-dimethyl-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester (174231-06-2)

Guidance literature:

Multi-step reaction with 2 steps

1: 37 percent / MeMgBr

2: 21 percent / Bu₃SnH, AIBN

With 2,2'-azobis(isobutyronitrile); methylmagnesium bromide; tri-n-butyl-tin hydride;

DOI:10.1016/0960-894X(96)00022-4

upstream raw materials:

(2S,5R,6S)-6-Bromo-6-((R)-1-hydroxy-ethyl)-3,3-dimethyl-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester

4-Nitrobenzyl 6,6-dibromopenicillanate

C₁₇H₁₉BrN₂O₆S

Downstream raw materials:

C₂₃H₃₄N₂O₆SSi