<3S-<3α(S^*),4β>>-1-(2,4-dimethoxybenzyl)-3-(1-t-butyldimethylsilyloxyethyl)-2-azetidinone-4-carboxylic acid

Base Information

• Chemical Name: <3S-<3α(S^*),4β>>-1-(2,4-dimethoxybenzyl)-3-(1-t-butyldimethylsilyloxyethyl)-2-azetidinone-4-carboxylic acid
• CAS No.: 81902-57-0
• Molecular Formula: C₂₁H₃₃NO₆Si
• Molecular Weight: 423.582

Synonyms:<3S-<3α(S^*),4β>>-1-(2,4-dimethoxybenzyl)-3-(1-t-butyldimethylsilyloxyethyl)-2-azetidinone-4-carboxylic acid

Chemical Property of <3S-<3α(S^*),4β>>-1-(2,4-dimethoxybenzyl)-3-(1-t-butyldimethylsilyloxyethyl)-2-azetidinone-4-carboxylic acid

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of <3S-<3α(S^*),4β>>-1-(2,4-dimethoxybenzyl)-3-(1-t-butyldimethylsilyloxyethyl)-2-azetidinone-4-carboxylic acid

There total 14 articles about <3S-<3α(S^*),4β>>-1-(2,4-dimethoxybenzyl)-3-(1-t-butyldimethylsilyloxyethyl)-2-azetidinone-4-carboxylic acid 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: 92.0%

<3S-<3α(S*),4β>>-t-butyl 1-(2,4-dimethoxybenzyl)-3-(1-t-butyldimethylsilyloxyethyl)-2-azetidinone-4-carboxylate (81902-61-6) → <3S-<3α(S*),4β>>-1-(2,4-dimethoxybenzyl)-3-(1-t-butyldimethylsilyloxyethyl)-2-azetidinone-4-carboxylic acid (81902-57-0)

Guidance literature:

With sodium hydroxide; In ethanol; water; at 50 ℃; for 16h;

DOI:10.1016/S0040-4039(01)92460-8

Reference yield: 89.0%

<3S-<3α(S*),4β>>-1-(2,4-dimethoxybenzyl)-3-(1-hydroxyethyl)-2-azetidinone-4-carboxylic acid (81902-54-7) + tert-butyldimethylsilyl chloride (18162-48-6) → <3S-<3α(S*),4β>>-1-(2,4-dimethoxybenzyl)-3-(1-t-butyldimethylsilyloxyethyl)-2-azetidinone-4-carboxylic acid (81902-57-0)

Guidance literature:

With dmap; In N,N-dimethyl-formamide; at 20 - 25 ℃; for 18h;

DOI:10.1016/S0040-4020(01)91966-0

Reference yield: 18.9%

<3S-<3α(S*),4β>>-t-butyl 1-(2,4-dimethoxybenzyl)-3-(1-t-butyldimethylsilyloxyethyl)-2-azetidinone-4-carboxylate (81902-61-6) → <3S-<3α(S*),4β>>-1-(2,4-dimethoxybenzyl)-3-(1-t-butyldimethylsilyloxyethyl)-4-hydroxymethyl-2-azetidinone (81902-62-7) + <3S-<3α(S*),4β>>-1-(2,4-dimethoxybenzyl)-3-(1-t-butyldimethylsilyloxyethyl)-2-azetidinone-4-carboxylic acid (81902-57-0)

Guidance literature:

With sodium tetrahydroborate; In ethanol; at 70 ℃; for 18h;

DOI:10.1016/S0040-4020(01)91132-9

upstream raw materials:

<3S-<3α(S^*),4β>>-t-butyl 1-(2,4-dimethoxybenzyl)-3-(1-t-butyldimethylsilyloxyethyl)-2-azetidinone-4-carboxylate

<3S-<3α(S^*),4β>>-1-(2,4-dimethoxybenzyl)-3-(1-hydroxyethyl)-2-azetidinone-4-carboxylic acid

tert-butyldimethylsilyl chloride

diethyl N-(2,4-dimethoxybenzyl)-amino-malonate

Downstream raw materials:

(3R,4R)-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]-4-acetoxyazetidin-2-one

(3S,4R)-4-benzenesulfonyl-3-((1R)-1-(tert-butyldimethylsilanyloxy)-ethyl)-azetidin-2-one

<3S-<3α(S^*),4β>>-1-(2,4-dimethoxybenzyl)-3-(1-t-butyldimethylsilyloxyethyl)-4-acetyl-2-azetidinone

(3S,4R)-3-<(R)-1-hydroxyethyl>-4-<(benzyloxycarbonyl)methyl>-2-azetidinone

Post a RFQ

Cas No.:

Product Name:

Quantity:

Please select Metric Ton KG G Pound L ML

Email:

Company name:

Valid Period:

Detailed Requirements:

• Sample
• MOQ
• GMP
• FDA
• Price
  FOB CIF CFR EXW
• Urgent purchase

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

Remove

Submit

1

What can I do for you?
Get Best Price

Get Best Price for 81902-57-0 <3S-<3α(S^*),4β>>-1-(2,4-dimethoxybenzyl)-3-(1-t-butyldimethylsilyloxyethyl)-2-azetidinone-4-carboxylic acid

Send

Send

Metric Ton KG G Pound L ML

Send

Send