(S)-3-[(S)-3-Cyclohexyl-2-((2S,3S)-3-methyl-2-{(S)-4-methyl-2-[(pyrazine-2-carbonyl)-amino]-pentanoylamino}-pentanoylamino)-propionylamino]-5,5-difluoro-2-hydroxy-pentanoic acid

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Chemical Name:(S)-3-[(S)-3-Cyclohexyl-2-((2S,3S)-3-methyl-2-{(S)-4-methyl-2-[(pyrazine-2-carbonyl)-amino]-pentanoylamino}-pentanoylamino)-propionylamino]-5,5-difluoro-2-hydroxy-pentanoic acid
CAS No.:676264-41-8
Molecular Formula:C₃₁H₄₈F₂N₆O₇
Molecular Weight:654.755
Hs Code.:

(S)-3-[(S)-3-Cyclohexyl-2-((2S,3S)-3-methyl-2-{(S)-4-methyl-2-[(pyrazine-2-carbonyl)-amino]-pentanoylamino}-pentanoylamino)-propionylamino]-5,5-difluoro-2-hydroxy-pentanoic acid

Synonyms:(S)-3-[(S)-3-Cyclohexyl-2-((2S,3S)-3-methyl-2-{(S)-4-methyl-2-[(pyrazine-2-carbonyl)-amino]-pentanoylamino}-pentanoylamino)-propionylamino]-5,5-difluoro-2-hydroxy-pentanoic acid

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Chemical Property of (S)-3-[(S)-3-Cyclohexyl-2-((2S,3S)-3-methyl-2-{(S)-4-methyl-2-[(pyrazine-2-carbonyl)-amino]-pentanoylamino}-pentanoylamino)-propionylamino]-5,5-difluoro-2-hydroxy-pentanoic acid

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Technology Process of (S)-3-[(S)-3-Cyclohexyl-2-((2S,3S)-3-methyl-2-{(S)-4-methyl-2-[(pyrazine-2-carbonyl)-amino]-pentanoylamino}-pentanoylamino)-propionylamino]-5,5-difluoro-2-hydroxy-pentanoic acid

There total 9 articles about (S)-3-[(S)-3-Cyclohexyl-2-((2S,3S)-3-methyl-2-{(S)-4-methyl-2-[(pyrazine-2-carbonyl)-amino]-pentanoylamino}-pentanoylamino)-propionylamino]-5,5-difluoro-2-hydroxy-pentanoic 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: 90.0%

: 558475-55-1
(S)-3-[(S)-3-Cyclohexyl-2-((2S,3S)-3-methyl-2-{(S)-4-methyl-2-[(pyrazine-2-carbonyl)-amino]-pentanoylamino}-pentanoylamino)-propionylamino]-5,5-difluoro-2-hydroxy-pentanoic acid methyl ester

: 676264-41-8
(S)-3-[(S)-3-Cyclohexyl-2-((2S,3S)-3-methyl-2-{(S)-4-methyl-2-[(pyrazine-2-carbonyl)-amino]-pentanoylamino}-pentanoylamino)-propionylamino]-5,5-difluoro-2-hydroxy-pentanoic acid

Guidance literature:: With lithium hydroxide; In tetrahydrofuran; at 0 ℃; for 1.5h;
DOI:10.1016/S0960-894X(03)00031-3

Reference yield:

: 3392-09-4
Boc-Leu-ONSu

: 676264-41-8
(S)-3-[(S)-3-Cyclohexyl-2-((2S,3S)-3-methyl-2-{(S)-4-methyl-2-[(pyrazine-2-carbonyl)-amino]-pentanoylamino}-pentanoylamino)-propionylamino]-5,5-difluoro-2-hydroxy-pentanoic acid

Guidance literature:: Multi-step reaction with 5 steps

1: 90 percent / DIEA / dimethylformamide / 8 h / 0 - 20 °C

2: 95 percent / TFA / CH₂Cl₂

3: 79 percent / DIEA / dimethylformamide / 4 h / 0 - 20 °C

4: PyBOP; DIEA / dimethylformamide / 4 h / 0 - 20 °C

5: 90 percent / aq. LiOH / tetrahydrofuran / 1.5 h / 0 °C

With lithium hydroxide; benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine; trifluoroacetic acid; In tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1016/S0960-894X(03)00031-3

Reference yield:

: 27527-05-5
L-cyclohexylalanine

: 676264-41-8
(S)-3-[(S)-3-Cyclohexyl-2-((2S,3S)-3-methyl-2-{(S)-4-methyl-2-[(pyrazine-2-carbonyl)-amino]-pentanoylamino}-pentanoylamino)-propionylamino]-5,5-difluoro-2-hydroxy-pentanoic acid

Guidance literature:: Multi-step reaction with 7 steps

1: 92 percent / DIEA / dimethylformamide / 8 h / 0 - 20 °C

2: 95 percent / TFA / CH₂Cl₂

3: 90 percent / DIEA / dimethylformamide / 8 h / 0 - 20 °C

4: 95 percent / TFA / CH₂Cl₂

5: 79 percent / DIEA / dimethylformamide / 4 h / 0 - 20 °C

6: PyBOP; DIEA / dimethylformamide / 4 h / 0 - 20 °C

7: 90 percent / aq. LiOH / tetrahydrofuran / 1.5 h / 0 °C

With lithium hydroxide; benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine; trifluoroacetic acid; In tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1016/S0960-894X(03)00031-3