(2S,4S)-tert-butyl-2-(tert-butoxycarbonylamino)-4-fluoro-5-oxo-5-(2,4,6-trimethoxybenzylamino)pentanoate

Base Information

• Chemical Name: (2S,4S)-tert-butyl-2-(tert-butoxycarbonylamino)-4-fluoro-5-oxo-5-(2,4,6-trimethoxybenzylamino)pentanoate
• CAS No.: 1262523-74-9
• Molecular Formula: C₂₄H₃₇FN₂O₈
• Molecular Weight: 500.565
• Mol file: 1262523-74-9.mol

Synonyms:(2S,4S)-tert-butyl-2-(tert-butoxycarbonylamino)-4-fluoro-5-oxo-5-(2,4,6-trimethoxybenzylamino)pentanoate

Chemical Property of (2S,4S)-tert-butyl-2-(tert-butoxycarbonylamino)-4-fluoro-5-oxo-5-(2,4,6-trimethoxybenzylamino)pentanoate

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (2S,4S)-tert-butyl-2-(tert-butoxycarbonylamino)-4-fluoro-5-oxo-5-(2,4,6-trimethoxybenzylamino)pentanoate

There total 11 articles about (2S,4S)-tert-butyl-2-(tert-butoxycarbonylamino)-4-fluoro-5-oxo-5-(2,4,6-trimethoxybenzylamino)pentanoate 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: 30.0%

(2S,4S)‐tert‐butyl 2‐(tert‐butoxycarbonylamino)‐5‐oxo‐4‐(tosyloxy)‐5‐(2,4,6‐trimethoxybenzylamino)pentanoate (1262523-66-9) → (2S,4S)-tert-butyl-2-(tert-butoxycarbonylamino)-4-fluoro-5-oxo-5-(2,4,6-trimethoxybenzylamino)pentanoate (1262523-74-9)

Guidance literature:

With tris(dimethylamino)sulfonium trimethylsilyldifluoride; triethylamine; In tetrahydrofuran; dichloromethane; at 45 ℃; for 24h;

Reference yield: 30.0%

(2S,4S)-tert-butyl-2-(tert-butoxycarbonylamino)-5-oxo-4-(tosyloxy)-5-(2,4,6-trimethoxybenzylamino)pentanoate (1262523-68-1) → (2S,4S)-tert-butyl-2-(tert-butoxycarbonylamino)-4-fluoro-5-oxo-5-(2,4,6-trimethoxybenzylamino)pentanoate (1262523-74-9)

Guidance literature:

With tris(dimethylamino)sulfonium difluorotrimethylsilicate; triethylamine tris(hydrogen fluoride); In tetrahydrofuran; dichloromethane; at 45 ℃; for 24h;

DOI:10.1021/ja109203d

Reference yield:

2-(isocyanomethyl)-1,3,5-trimethoxybenzene (480438-26-4) → (2S,4S)-tert-butyl-2-(tert-butoxycarbonylamino)-4-fluoro-5-oxo-5-(2,4,6-trimethoxybenzylamino)pentanoate (1262523-74-9)

Guidance literature:

Multi-step reaction with 4 steps

1: dichloromethane / 24 h / 20 °C

2: sodium hydrogencarbonate; thiourea / tetrahydrofuran; ethanol / 1.5 h / 50 °C

3: dmap; triethylamine / dichloromethane / 0 - 20 °C

4: tris(dimethylamino)sulfonium difluorotrimethylsilicate; triethylamine tris(hydrogen fluoride) / tetrahydrofuran; dichloromethane / 24 h / 45 °C

With dmap; tris(dimethylamino)sulfonium difluorotrimethylsilicate; sodium hydrogencarbonate; triethylamine tris(hydrogen fluoride); triethylamine; thiourea; In tetrahydrofuran; ethanol; dichloromethane; 1: Passerini reaction;

DOI:10.1021/ja109203d

upstream raw materials:

(2S,4S)‐tert‐butyl 2‐(tert‐butoxycarbonylamino)‐5‐oxo‐4‐(tosyloxy)‐5‐(2,4,6‐trimethoxybenzylamino)pentanoate

2-(isocyanomethyl)-1,3,5-trimethoxybenzene

(2S)-tert-butyl-2-(tert-butoxycarbonylamino)-4-(2-chloroacetoxy)-5-oxo-5-(2,4,6-trimethoxybenzylamino)pentanoate

(2S,4R)-tert-butyl-2-(tert-butoxycarbonylamino)-4-hydroxy-5-oxo-5-(2,4,6-trimethoxybenzylamino)pentanoate

Downstream raw materials:

(2S,4S)-2,5-diamino-4-fluoro-5-oxopentanoic acid