(E)-2-[(2S,3S)-2-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-4-oxo-3-(2-oxo-4,5-diphenyl-oxazol-3-yl)-azetidin-1-yl]-but-2-enoic acid methyl ester

Base Information

• Chemical Name: (E)-2-[(2S,3S)-2-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-4-oxo-3-(2-oxo-4,5-diphenyl-oxazol-3-yl)-azetidin-1-yl]-but-2-enoic acid methyl ester
• CAS No.: 161970-89-4
• Molecular Formula: C₂₈H₂₈N₂O₇
• Molecular Weight: 504.54
• Mol file: 161970-89-4.mol

Synonyms:(E)-2-[(2S,3S)-2-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-4-oxo-3-(2-oxo-4,5-diphenyl-oxazol-3-yl)-azetidin-1-yl]-but-2-enoic acid methyl ester

Chemical Property of (E)-2-[(2S,3S)-2-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-4-oxo-3-(2-oxo-4,5-diphenyl-oxazol-3-yl)-azetidin-1-yl]-but-2-enoic acid methyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (E)-2-[(2S,3S)-2-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-4-oxo-3-(2-oxo-4,5-diphenyl-oxazol-3-yl)-azetidin-1-yl]-but-2-enoic acid methyl ester

There total 5 articles about (E)-2-[(2S,3S)-2-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-4-oxo-3-(2-oxo-4,5-diphenyl-oxazol-3-yl)-azetidin-1-yl]-but-2-enoic acid methyl 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: 83.0%

(3S,4S)-1-<1(R)-(methoxycarbonyl)-2(S)-O-<(tert-butyldimethylsilyl)oxy>propyl>-3-(2-oxo-4,5-diphenyl-1-oxazolinyl)-4-<(S)-2,2-dimethyl-1,3-dioxolan-4-yl>azetidin-2-one (161871-12-1) → (E)-2-[(2S,3S)-2-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-4-oxo-3-(2-oxo-4,5-diphenyl-oxazol-3-yl)-azetidin-1-yl]-but-2-enoic acid methyl ester (161970-89-4)

Guidance literature:

With tetrabutyl ammonium fluoride; In tetrahydrofuran; acetic acid;

DOI:10.1016/0040-4039(94)02294-L

Reference yield:

methyl O-[tert-butyl(dimethyl)silyl]-D-threoninate (119599-96-1) → (E)-2-[(2S,3S)-2-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-4-oxo-3-(2-oxo-4,5-diphenyl-oxazol-3-yl)-azetidin-1-yl]-but-2-enoic acid methyl ester (161970-89-4)

Guidance literature:

Multi-step reaction with 3 steps

1: MgSO₄ / CH₂Cl₂

2: TEA / CH₂Cl₂

3: 83 percent / tetrabutylammonium fluoride / acetic acid; tetrahydrofuran

With TEA; tetrabutyl ammonium fluoride; magnesium sulfate; In tetrahydrofuran; dichloromethane; acetic acid;

DOI:10.1016/0040-4039(94)02294-L

Reference yield:

(2R,3S)-3-(tert-Butyl-dimethyl-silanyloxy)-2-{[1-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-meth-(E)-ylidene]-amino}-butyric acid methyl ester (161871-11-0) → (E)-2-[(2S,3S)-2-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-4-oxo-3-(2-oxo-4,5-diphenyl-oxazol-3-yl)-azetidin-1-yl]-but-2-enoic acid methyl ester (161970-89-4)

Guidance literature:

Multi-step reaction with 2 steps

1: TEA / CH₂Cl₂

2: 83 percent / tetrabutylammonium fluoride / acetic acid; tetrahydrofuran

With TEA; tetrabutyl ammonium fluoride; In tetrahydrofuran; dichloromethane; acetic acid;

DOI:10.1016/0040-4039(94)02294-L

upstream raw materials:

(3S,4S)-1-<1(R)-(methoxycarbonyl)-2(S)-O-<(tert-butyldimethylsilyl)oxy>propyl>-3-(2-oxo-4,5-diphenyl-1-oxazolinyl)-4-<(S)-2,2-dimethyl-1,3-dioxolan-4-yl>azetidin-2-one

methyl O-[tert-butyl(dimethyl)silyl]-D-threoninate

(2R,3S)-3-(tert-Butyl-dimethyl-silanyloxy)-2-{[1-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-meth-(E)-ylidene]-amino}-butyric acid methyl ester

2,3-isopropylidene-glyceraldehyde

Downstream raw materials:

(E)-2-[(2S,3S)-2-((S)-1,2-Dihydroxy-ethyl)-4-oxo-3-(2-oxo-4,5-diphenyl-oxazol-3-yl)-azetidin-1-yl]-but-2-enoic acid methyl ester