(2S,3S,4S)-2-(4-Benzyloxy-butyl)-3,4-bis-(tert-butyl-dimethyl-silanyloxy)-pyrrolidine-1-carboxylic acid tert-butyl ester

Base Information

• Chemical Name: (2S,3S,4S)-2-(4-Benzyloxy-butyl)-3,4-bis-(tert-butyl-dimethyl-silanyloxy)-pyrrolidine-1-carboxylic acid tert-butyl ester
• CAS No.: 203730-32-9
• Molecular Formula: C₃₂H₅₉NO₅Si₂
• Molecular Weight: 593.995
• Mol file: 203730-32-9.mol

Synonyms:

Chemical Property of (2S,3S,4S)-2-(4-Benzyloxy-butyl)-3,4-bis-(tert-butyl-dimethyl-silanyloxy)-pyrrolidine-1-carboxylic acid tert-butyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (2S,3S,4S)-2-(4-Benzyloxy-butyl)-3,4-bis-(tert-butyl-dimethyl-silanyloxy)-pyrrolidine-1-carboxylic acid tert-butyl ester

There total 4 articles about (2S,3S,4S)-2-(4-Benzyloxy-butyl)-3,4-bis-(tert-butyl-dimethyl-silanyloxy)-pyrrolidine-1-carboxylic acid tert-butyl 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:

(3R,4S)-2-(4-Benzyloxy-butyl)-3,4-bis-(tert-butyl-dimethyl-silanyloxy)-2-hydroxy-pyrrolidine-1-carboxylic acid tert-butyl ester → (2S,3S,4S)-2-(4-Benzyloxy-butyl)-3,4-bis-(tert-butyl-dimethyl-silanyloxy)-pyrrolidine-1-carboxylic acid tert-butyl ester (203730-32-9)

Guidance literature:

With triethylsilane; boron trifluoride diethyl etherate; In dichloromethane; at -78 ℃; Yield given;

DOI:10.1055/s-1998-1617

Reference yield:

(3R,4S)-3,4-Bis-benzyloxy-2-oxo-pyrrolidine-1-carboxylic acid tert-butyl ester (203730-24-9) → (2S,3S,4S)-2-(4-Benzyloxy-butyl)-3,4-bis-(tert-butyl-dimethyl-silanyloxy)-pyrrolidine-1-carboxylic acid tert-butyl ester (203730-32-9)

Guidance literature:

Multi-step reaction with 4 steps

1: 96 percent / HCOOH / Pd / methanol / 40 °C

2: 94 percent / imidazole / dimethylformamide

3: tetrahydrofuran / -78 °C

4: Et₃SiH, BF₃*OEt₂ / CH₂Cl₂ / -78 °C

With 1H-imidazole; triethylsilane; formic acid; boron trifluoride diethyl etherate; palladium; In tetrahydrofuran; methanol; dichloromethane; N,N-dimethyl-formamide;

DOI:10.1055/s-1998-1617

Reference yield:

(3R,4S)-3,4-Dihydroxy-2-oxo-pyrrolidine-1-carboxylic acid tert-butyl ester (203730-26-1) → (2S,3S,4S)-2-(4-Benzyloxy-butyl)-3,4-bis-(tert-butyl-dimethyl-silanyloxy)-pyrrolidine-1-carboxylic acid tert-butyl ester (203730-32-9)

Guidance literature:

Multi-step reaction with 3 steps

1: 94 percent / imidazole / dimethylformamide

2: tetrahydrofuran / -78 °C

3: Et₃SiH, BF₃*OEt₂ / CH₂Cl₂ / -78 °C

With 1H-imidazole; triethylsilane; boron trifluoride diethyl etherate; In tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide;

DOI:10.1055/s-1998-1617

upstream raw materials:

(3R,4S)-3,4-Dihydroxy-2-oxo-pyrrolidine-1-carboxylic acid tert-butyl ester

(3R,4S)-3,4-Bis-(tert-butyl-dimethyl-silanyloxy)-2-oxo-pyrrolidine-1-carboxylic acid tert-butyl ester

(3R,4S)-3,4-Bis-benzyloxy-2-oxo-pyrrolidine-1-carboxylic acid tert-butyl ester

Downstream raw materials:

(+)-lentiginosine

(2S,3S,4S)-3,4-Bis-(tert-butyl-dimethyl-silanyloxy)-2-[4-(toluene-4-sulfonyloxy)-butyl]-pyrrolidine-1-carboxylic acid tert-butyl ester