[(2R,3R)-2-(3-Bromo-2-oxo-propyl)-3-((R)-1-fluoro-ethyl)-4-oxo-azetidin-1-yl]-(triphenyl-λ⁵-phosphanylidene)-acetic acid 4-nitro-benzyl ester

Base Information

• Chemical Name: [(2R,3R)-2-(3-Bromo-2-oxo-propyl)-3-((R)-1-fluoro-ethyl)-4-oxo-azetidin-1-yl]-(triphenyl-λ⁵-phosphanylidene)-acetic acid 4-nitro-benzyl ester
• CAS No.: 99377-93-2
• Molecular Formula: C₃₅H₃₁BrFN₂O₆P
• Molecular Weight: 705.517

Synonyms:[(2R,3R)-2-(3-Bromo-2-oxo-propyl)-3-((R)-1-fluoro-ethyl)-4-oxo-azetidin-1-yl]-(triphenyl-λ⁵-phosphanylidene)-acetic acid 4-nitro-benzyl ester

Chemical Property of [(2R,3R)-2-(3-Bromo-2-oxo-propyl)-3-((R)-1-fluoro-ethyl)-4-oxo-azetidin-1-yl]-(triphenyl-λ⁵-phosphanylidene)-acetic acid 4-nitro-benzyl ester

Chemical Property:

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Technology Process of [(2R,3R)-2-(3-Bromo-2-oxo-propyl)-3-((R)-1-fluoro-ethyl)-4-oxo-azetidin-1-yl]-(triphenyl-λ⁵-phosphanylidene)-acetic acid 4-nitro-benzyl ester

There total 4 articles about [(2R,3R)-2-(3-Bromo-2-oxo-propyl)-3-((R)-1-fluoro-ethyl)-4-oxo-azetidin-1-yl]-(triphenyl-λ⁵-phosphanylidene)-acetic 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: 99.0%

[(2R,3R)-2-(2-Bromomethyl-[1,3]dioxolan-2-ylmethyl)-3-((R)-1-fluoro-ethyl)-4-oxo-azetidin-1-yl]-(triphenyl-λ5-phosphanylidene)-acetic acid 4-nitro-benzyl ester (99377-92-1) → [(2R,3R)-2-(3-Bromo-2-oxo-propyl)-3-((R)-1-fluoro-ethyl)-4-oxo-azetidin-1-yl]-(triphenyl-λ5-phosphanylidene)-acetic acid 4-nitro-benzyl ester (99377-93-2)

Guidance literature:

With perchloric acid; In dichloromethane; for 0.133333h;

Reference yield:

(3S,4S)-4-(3-Bromo-2-oxo-propyl)-3-(1-fluoro-ethyl)-azetidin-2-one (98376-23-9,99437-03-3) → [(2R,3R)-2-(3-Bromo-2-oxo-propyl)-3-((R)-1-fluoro-ethyl)-4-oxo-azetidin-1-yl]-(triphenyl-λ5-phosphanylidene)-acetic acid 4-nitro-benzyl ester (99377-93-2)

Guidance literature:

Multi-step reaction with 3 steps

1: 77 percent / PPTS / benzene / Heating

3: 99 percent / 70percent aq. HClO₄ / CH₂Cl₂ / 0.13 h

With perchloric acid; pyridinium p-toluenesulfonate; In dichloromethane; benzene;

Reference yield:

[(2S,3S)-3-((S)-1-Fluoro-ethyl)-4-oxo-azetidin-2-yl]-acetic acid (90497-22-6,99437-02-2) → [(2R,3R)-2-(3-Bromo-2-oxo-propyl)-3-((R)-1-fluoro-ethyl)-4-oxo-azetidin-1-yl]-(triphenyl-λ5-phosphanylidene)-acetic acid 4-nitro-benzyl ester (99377-93-2)

Guidance literature:

Multi-step reaction with 4 steps

2: 77 percent / PPTS / benzene / Heating

4: 99 percent / 70percent aq. HClO₄ / CH₂Cl₂ / 0.13 h

With perchloric acid; pyridinium p-toluenesulfonate; In dichloromethane; benzene;

upstream raw materials:

[(2R,3R)-2-(2-Bromomethyl-[1,3]dioxolan-2-ylmethyl)-3-((R)-1-fluoro-ethyl)-4-oxo-azetidin-1-yl]-(triphenyl-λ⁵-phosphanylidene)-acetic acid 4-nitro-benzyl ester

(3S,4S)-4-(3-Bromo-2-oxo-propyl)-3-(1-fluoro-ethyl)-azetidin-2-one

[(2S,3S)-3-((S)-1-Fluoro-ethyl)-4-oxo-azetidin-2-yl]-acetic acid

(3S,4S)-4-(2-Bromomethyl-[1,3]dioxolan-2-ylmethyl)-3-((S)-1-fluoro-ethyl)-azetidin-2-one

Downstream raw materials:

{(3R,4R)-3-((R)-1-Fluoro-ethyl)-2-oxo-4-[2-oxo-3-(pyridin-3-ylmethylsulfanyl)-propyl]-azetidin-1-yl}-(triphenyl-λ⁵-phosphanylidene)-acetic acid 4-nitro-benzyl ester

(5R,6R)-6-((R)-1-Fluoro-ethyl)-7-oxo-3-(pyridin-3-ylmethanesulfonylmethyl)-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester

(5R,6R)-6-((R)-1-Fluoro-ethyl)-7-oxo-3-(pyridin-3-ylmethanesulfinylmethyl)-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester

(5R,6R)-6-((R)-1-Fluoro-ethyl)-7-oxo-3-(pyridin-3-ylmethylsulfanylmethyl)-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester

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