[(S)-1-Benzyl-2-((S)-3-ethoxy-2-methyl-5-oxo-2,5-dihydro-pyrrol-1-yl)-2-oxo-ethyl]-carbamic acid 9H-fluoren-9-ylmethyl ester

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Chemical Name:[(S)-1-Benzyl-2-((S)-3-ethoxy-2-methyl-5-oxo-2,5-dihydro-pyrrol-1-yl)-2-oxo-ethyl]-carbamic acid 9H-fluoren-9-ylmethyl ester
CAS No.:890709-77-0
Molecular Formula:C₃₁H₃₀N₂O₅
Molecular Weight:510.59
Hs Code.:

Synonyms:[(S)-1-Benzyl-2-((S)-3-ethoxy-2-methyl-5-oxo-2,5-dihydro-pyrrol-1-yl)-2-oxo-ethyl]-carbamic acid 9H-fluoren-9-ylmethyl ester

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Chemical Property of [(S)-1-Benzyl-2-((S)-3-ethoxy-2-methyl-5-oxo-2,5-dihydro-pyrrol-1-yl)-2-oxo-ethyl]-carbamic acid 9H-fluoren-9-ylmethyl ester

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Technology Process of [(S)-1-Benzyl-2-((S)-3-ethoxy-2-methyl-5-oxo-2,5-dihydro-pyrrol-1-yl)-2-oxo-ethyl]-carbamic acid 9H-fluoren-9-ylmethyl ester

There total 3 articles about [(S)-1-Benzyl-2-((S)-3-ethoxy-2-methyl-5-oxo-2,5-dihydro-pyrrol-1-yl)-2-oxo-ethyl]-carbamic acid 9H-fluoren-9-ylmethyl 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: 85.0%

: 890709-68-9
(S)-4-ethoxy-5-methyl-1H-pyrrol-2(5H)-one

: 86060-92-6,159505-85-8
N-α-Fmoc-L-phenylalanine pentafluorophenyl ester

: 890709-77-0
[(S)-1-Benzyl-2-((S)-3-ethoxy-2-methyl-5-oxo-2,5-dihydro-pyrrol-1-yl)-2-oxo-ethyl]-carbamic acid 9H-fluoren-9-ylmethyl ester

Guidance literature:: (S)-4-ethoxy-5-methyl-1H-pyrrol-2(5H)-one; With n-butyllithium; In tetrahydrofuran; hexane; at -55 ℃; for 0.166667h;

N-α-Fmoc-L-phenylalanine pentafluorophenyl ester; In tetrahydrofuran; hexane; at -55 - -45 ℃; for 0.5h;
DOI:10.1021/ol060500i

Reference yield:

: 890709-66-7
tert-butyl (2S)-2-methyl-3,5-dioxo-pyrrolidine-1-carboxylate

: 890709-77-0
[(S)-1-Benzyl-2-((S)-3-ethoxy-2-methyl-5-oxo-2,5-dihydro-pyrrol-1-yl)-2-oxo-ethyl]-carbamic acid 9H-fluoren-9-ylmethyl ester

Guidance literature:: Multi-step reaction with 3 steps

1.1: TFA / CH₂Cl₂ / 0.17 h

2.1: KHMDS / tetrahydrofuran; toluene / 0.17 h / 0 °C

2.2: 87 percent / 18-crown-6 / tetrahydrofuran; toluene / 0 - 20 °C

3.1: n-BuLi / tetrahydrofuran; hexane / 0.17 h / -55 °C

3.2: 85 percent / tetrahydrofuran; hexane / 0.5 h / -55 - -45 °C

With n-butyllithium; potassium hexamethylsilazane; trifluoroacetic acid; In tetrahydrofuran; hexane; dichloromethane; toluene;
DOI:10.1021/ol060500i

Reference yield:

: 151004-17-0
(5S)-5-methyl-2,4-dioxopyrrolidine

: 890709-77-0
[(S)-1-Benzyl-2-((S)-3-ethoxy-2-methyl-5-oxo-2,5-dihydro-pyrrol-1-yl)-2-oxo-ethyl]-carbamic acid 9H-fluoren-9-ylmethyl ester

Guidance literature:: Multi-step reaction with 2 steps

1.1: KHMDS / tetrahydrofuran; toluene / 0.17 h / 0 °C

1.2: 87 percent / 18-crown-6 / tetrahydrofuran; toluene / 0 - 20 °C

2.1: n-BuLi / tetrahydrofuran; hexane / 0.17 h / -55 °C

2.2: 85 percent / tetrahydrofuran; hexane / 0.5 h / -55 - -45 °C

With n-butyllithium; potassium hexamethylsilazane; In tetrahydrofuran; hexane; toluene;
DOI:10.1021/ol060500i