tert-butyl N-(4-benzyloxybutoxycarbonyl)-3-({[(5R)-3-(4-cyanophenyl)-4,5-dihydro-5-isoxazolyl]acetyl}amino)-L-alaninate

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Chemical Name:tert-butyl N-(4-benzyloxybutoxycarbonyl)-3-({[(5R)-3-(4-cyanophenyl)-4,5-dihydro-5-isoxazolyl]acetyl}amino)-L-alaninate
CAS No.:752235-78-2
Molecular Formula:C₃₁H₃₈N₄O₇
Molecular Weight:578.665
Hs Code.:

Synonyms:tert-butyl N-(4-benzyloxybutoxycarbonyl)-3-({[(5R)-3-(4-cyanophenyl)-4,5-dihydro-5-isoxazolyl]acetyl}amino)-L-alaninate

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Chemical Property of tert-butyl N-(4-benzyloxybutoxycarbonyl)-3-({[(5R)-3-(4-cyanophenyl)-4,5-dihydro-5-isoxazolyl]acetyl}amino)-L-alaninate

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Technology Process of tert-butyl N-(4-benzyloxybutoxycarbonyl)-3-({[(5R)-3-(4-cyanophenyl)-4,5-dihydro-5-isoxazolyl]acetyl}amino)-L-alaninate

There total 5 articles about tert-butyl N-(4-benzyloxybutoxycarbonyl)-3-({[(5R)-3-(4-cyanophenyl)-4,5-dihydro-5-isoxazolyl]acetyl}amino)-L-alaninate 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: 81.0%

: 752235-77-1
4-benzyloxybutyl chlorocarbonate

: 752235-76-0
tert-butyl 3-({[(5R)-3-(4-cyanophenyl)-4,5-dihydro-5-isoxazolyl]acetyl}amino)-L-alaninate

: 752235-78-2
tert-butyl N-(4-benzyloxybutoxycarbonyl)-3-({[(5R)-3-(4-cyanophenyl)-4,5-dihydro-5-isoxazolyl]acetyl}amino)-L-alaninate

Guidance literature:: With triethylamine; In tetrahydrofuran; at 20 ℃; for 0.25h;
DOI:10.3987/COM-04-10087

Reference yield:

: 4541-14-4
4-benzyloxy-butan-1-ol

: 752235-78-2
tert-butyl N-(4-benzyloxybutoxycarbonyl)-3-({[(5R)-3-(4-cyanophenyl)-4,5-dihydro-5-isoxazolyl]acetyl}amino)-L-alaninate

Guidance literature:: Multi-step reaction with 2 steps

1: 66 percent / Et₃N / tetrahydrofuran / 0 - 10 °C

2: 81 percent / Et₃N / tetrahydrofuran / 0.25 h / 20 °C

With triethylamine; In tetrahydrofuran;
DOI:10.3987/COM-04-10087

Reference yield:

: 77215-55-5
tert-butyl 2-N-carbobenzoxy-(S)-2,3-diaminopropionate

: 752235-78-2
tert-butyl N-(4-benzyloxybutoxycarbonyl)-3-({[(5R)-3-(4-cyanophenyl)-4,5-dihydro-5-isoxazolyl]acetyl}amino)-L-alaninate

Guidance literature:: Multi-step reaction with 3 steps

1: 88 percent / TBTU; Et₃N / dimethylformamide / 5 h / 20 °C

2: 55 percent / 1,4-cyclohexadiene / Pd(OH)2 / methanol / 6 h / Heating

3: 81 percent / Et₃N / tetrahydrofuran / 0.25 h / 20 °C

With cyclohexa-1,4-diene; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; triethylamine; palladium dihydroxide; In tetrahydrofuran; methanol; N,N-dimethyl-formamide;
DOI:10.3987/COM-04-10087