(2S,3S)-2-tert-Butoxycarbonylamino-3-(tert-butyl-dimethyl-silanyloxy)-3-(4-fluoro-3-nitro-phenyl)-propionic acid methyl ester

Base Information

• Chemical Name: (2S,3S)-2-tert-Butoxycarbonylamino-3-(tert-butyl-dimethyl-silanyloxy)-3-(4-fluoro-3-nitro-phenyl)-propionic acid methyl ester
• CAS No.: 188446-50-6
• Molecular Formula: C₂₁H₃₃FN₂O₇Si
• Molecular Weight: 472.586
• Mol file: 188446-50-6.mol

Synonyms:(2S,3S)-2-tert-Butoxycarbonylamino-3-(tert-butyl-dimethyl-silanyloxy)-3-(4-fluoro-3-nitro-phenyl)-propionic acid methyl ester

Chemical Property of (2S,3S)-2-tert-Butoxycarbonylamino-3-(tert-butyl-dimethyl-silanyloxy)-3-(4-fluoro-3-nitro-phenyl)-propionic acid methyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (2S,3S)-2-tert-Butoxycarbonylamino-3-(tert-butyl-dimethyl-silanyloxy)-3-(4-fluoro-3-nitro-phenyl)-propionic acid methyl ester

There total 5 articles about (2S,3S)-2-tert-Butoxycarbonylamino-3-(tert-butyl-dimethyl-silanyloxy)-3-(4-fluoro-3-nitro-phenyl)-propionic 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: 90.0%

di-tert-butyl dicarbonate (24424-99-5) + (2S,3S)-2-Amino-3-(tert-butyl-dimethyl-silanyloxy)-3-(4-fluoro-3-nitro-phenyl)-propionic acid methyl ester (188446-49-3) → (2S,3S)-2-tert-Butoxycarbonylamino-3-(tert-butyl-dimethyl-silanyloxy)-3-(4-fluoro-3-nitro-phenyl)-propionic acid methyl ester (188446-50-6)

Guidance literature:

With potassium carbonate; In tetrahydrofuran; water; at 25 ℃; for 3h;

DOI:10.1021/jo961346o

Reference yield:

p-benzyloxybenzaldehyde (4397-53-9) → (2S,3S)-2-tert-Butoxycarbonylamino-3-(tert-butyl-dimethyl-silanyloxy)-3-(4-fluoro-3-nitro-phenyl)-propionic acid methyl ester (188446-50-6)

Guidance literature:

Multi-step reaction with 4 steps

1: n-BuLi / tetrahydrofuran / 1.5 h / -78 - -30 °C

2: 1.) 0.25N HCl, 2.) NaHCO₃ / 2.) H₂O

3: 75 percent / Et₃N / CH₂Cl₂ / 24 h / -10 - 4 °C

4: 90 percent / K₂CO₃ / tetrahydrofuran; H₂O / 3 h / 25 °C

With hydrogenchloride; n-butyllithium; sodium hydrogencarbonate; potassium carbonate; triethylamine; In tetrahydrofuran; dichloromethane; water;

DOI:10.1021/jo961346o

Reference yield:

t-butyldimethylsiyl triflate (69739-34-0) → (2S,3S)-2-tert-Butoxycarbonylamino-3-(tert-butyl-dimethyl-silanyloxy)-3-(4-fluoro-3-nitro-phenyl)-propionic acid methyl ester (188446-50-6)

Guidance literature:

Multi-step reaction with 2 steps

1: 75 percent / Et₃N / CH₂Cl₂ / 24 h / -10 - 4 °C

2: 90 percent / K₂CO₃ / tetrahydrofuran; H₂O / 3 h / 25 °C

With potassium carbonate; triethylamine; In tetrahydrofuran; dichloromethane; water;

DOI:10.1021/jo961346o

upstream raw materials:

di-tert-butyl dicarbonate

(2S,3S)-2-Amino-3-(tert-butyl-dimethyl-silanyloxy)-3-(4-fluoro-3-nitro-phenyl)-propionic acid methyl ester

p-benzyloxybenzaldehyde

t-butyldimethylsiyl triflate