(2S,3S,5R)-3-Methyl-7-oxo-3-((E)-3-oxo-propenyl)-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzhydryl ester

Base Information

Chemical Name:(2S,3S,5R)-3-Methyl-7-oxo-3-((E)-3-oxo-propenyl)-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzhydryl ester
CAS No.:162515-49-3
Molecular Formula:C₂₃H₂₁NO₄S
Molecular Weight:407.49
Hs Code.:

Synonyms:(2S,3S,5R)-3-Methyl-7-oxo-3-((E)-3-oxo-propenyl)-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzhydryl ester

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Chemical Property of (2S,3S,5R)-3-Methyl-7-oxo-3-((E)-3-oxo-propenyl)-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzhydryl ester

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Technology Process of (2S,3S,5R)-3-Methyl-7-oxo-3-((E)-3-oxo-propenyl)-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzhydryl ester

There total 7 articles about (2S,3S,5R)-3-Methyl-7-oxo-3-((E)-3-oxo-propenyl)-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzhydryl 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: 13.0%

: 2136-75-6
(triphenylphosphoranylidene)acetaldehyde

: 162514-95-6
diphenylmethyl (2S,3R,5R)-3-formyl-3-methyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate

: 162515-49-3
(2S,3S,5R)-3-Methyl-7-oxo-3-((E)-3-oxo-propenyl)-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzhydryl ester

Guidance literature:: With lithium perchlorate; In acetonitrile; at -20 ℃; for 4h;
DOI:10.1021/jm9601967

Reference yield:

: 551-16-6
6-Aminopenicillanic Acid

: 162515-49-3
(2S,3S,5R)-3-Methyl-7-oxo-3-((E)-3-oxo-propenyl)-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzhydryl ester

Guidance literature:: Multi-step reaction with 6 steps

1: 1.) NaNO₂, H⁺, KBr, 2.) CH₃CO₃H

2: 90 percent / PBu₃ / methanol / 0.75 h / Ambient temperature

3: 84.2 percent / Heating

4: 1.) AcOAg, 2.) thiourea, pyridine / 1.) CH₂Cl₂, 6 h, 2.) DMF, from 0 deg C to RT

5: 1.) oxalyl chloride, DMSO, 2.) TEA / 1.) CH₂Cl₂, -70 deg C, 3 h, 2.) CH₂Cl₂, from -70 deg C to -10 deg C, 20 min

6: 13 percent / LiClO₄ / acetonitrile / 4 h / -20 °C

With pyridine; peracetic acid; oxalyl dichloride; tributylphosphine; TEA; silver(I) acetate; lithium perchlorate; hydrogen cation; dimethyl sulfoxide; thiourea; potassium bromide; sodium nitrite; In methanol; acetonitrile;
DOI:10.1021/jm9601967

Reference yield:

: 5350-57-2
benzophenone hydrazone

: 162515-49-3
(2S,3S,5R)-3-Methyl-7-oxo-3-((E)-3-oxo-propenyl)-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid benzhydryl ester

Guidance literature:: Multi-step reaction with 6 steps

1: 1.) NaNO₂, H⁺, KBr, 2.) CH₃CO₃H

2: 90 percent / PBu₃ / methanol / 0.75 h / Ambient temperature

3: 84.2 percent / Heating

4: 1.) AcOAg, 2.) thiourea, pyridine / 1.) CH₂Cl₂, 6 h, 2.) DMF, from 0 deg C to RT

5: 1.) oxalyl chloride, DMSO, 2.) TEA / 1.) CH₂Cl₂, -70 deg C, 3 h, 2.) CH₂Cl₂, from -70 deg C to -10 deg C, 20 min

6: 13 percent / LiClO₄ / acetonitrile / 4 h / -20 °C

With pyridine; peracetic acid; oxalyl dichloride; tributylphosphine; TEA; silver(I) acetate; lithium perchlorate; hydrogen cation; dimethyl sulfoxide; thiourea; potassium bromide; sodium nitrite; In methanol; acetonitrile;
DOI:10.1021/jm9601967