(3S)-1-(2,4-dimethoxybenzyl)-3-<(R)-1-(t-butyldimethylsilyloxy)ethyl>-4,4-bis(ethoxycarbonyl)-2-azetidinone

Base Information

Chemical Name:(3S)-1-(2,4-dimethoxybenzyl)-3-<(R)-1-(t-butyldimethylsilyloxy)ethyl>-4,4-bis(ethoxycarbonyl)-2-azetidinone
CAS No.:80829-73-8
Molecular Formula:C₂₆H₄₁NO₈Si
Molecular Weight:523.699
Hs Code.:

Synonyms:(3S)-1-(2,4-dimethoxybenzyl)-3-<(R)-1-(t-butyldimethylsilyloxy)ethyl>-4,4-bis(ethoxycarbonyl)-2-azetidinone

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Chemical Property of (3S)-1-(2,4-dimethoxybenzyl)-3-<(R)-1-(t-butyldimethylsilyloxy)ethyl>-4,4-bis(ethoxycarbonyl)-2-azetidinone

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Technology Process of (3S)-1-(2,4-dimethoxybenzyl)-3-<(R)-1-(t-butyldimethylsilyloxy)ethyl>-4,4-bis(ethoxycarbonyl)-2-azetidinone

There total 4 articles about (3S)-1-(2,4-dimethoxybenzyl)-3-<(R)-1-(t-butyldimethylsilyloxy)ethyl>-4,4-bis(ethoxycarbonyl)-2-azetidinone 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: 93.0%

: 85725-69-5
(2R,3R)-N-(2,4-dimethoxybenzyl)-N--2-bromo-3-(t-butyldimethylsilyloxy)butyramide

: 80829-73-8
(3S)-1-(2,4-dimethoxybenzyl)-3-<(R)-1-(t-butyldimethylsilyloxy)ethyl>-4,4-bis(ethoxycarbonyl)-2-azetidinone

Guidance literature:: With 1,8-diazabicyclo[5.4.0]undec-7-ene; In tetrahydrofuran;
DOI:10.1246/cl.1983.169

Reference yield:

: 81902-49-0
diethyl N-(2,4-dimethoxybenzyl)-amino-malonate

: 80829-73-8
(3S)-1-(2,4-dimethoxybenzyl)-3-<(R)-1-(t-butyldimethylsilyloxy)ethyl>-4,4-bis(ethoxycarbonyl)-2-azetidinone

Guidance literature:: Multi-step reaction with 2 steps

1: Et₃N / tetrahydrofuran

2: 93 percent / 1,8-diazabicyclo<5.4.0>undec-7-ene / tetrahydrofuran

With 1,8-diazabicyclo[5.4.0]undec-7-ene; triethylamine; In tetrahydrofuran;
DOI:10.1246/cl.1983.169

Reference yield:

: 85725-67-3
(2R,3R)-2-bromo-3-(t-butyldimethylsilyloxy)butyric acid

: 80829-73-8
(3S)-1-(2,4-dimethoxybenzyl)-3-<(R)-1-(t-butyldimethylsilyloxy)ethyl>-4,4-bis(ethoxycarbonyl)-2-azetidinone

Guidance literature:: Multi-step reaction with 3 steps

1: oxalyl chloride / tetrahydrofuran / 16 h / 20 °C

2: Et₃N / tetrahydrofuran

3: 93 percent / 1,8-diazabicyclo<5.4.0>undec-7-ene / tetrahydrofuran

With oxalyl dichloride; 1,8-diazabicyclo[5.4.0]undec-7-ene; triethylamine; In tetrahydrofuran;
DOI:10.1246/cl.1983.169