2-((S)-1-{[2-((S)-1-{[2-((S)-1-Benzyloxycarbonylamino-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carbonyl]-amino}-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carbonyl]-amino}-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carboxylic acid methyl ester

Base Information

• Chemical Name: 2-((S)-1-{[2-((S)-1-{[2-((S)-1-Benzyloxycarbonylamino-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carbonyl]-amino}-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carbonyl]-amino}-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carboxylic acid methyl ester
• CAS No.: 213176-53-5
• Molecular Formula: C₄₂H₅₅N₉O₁₅
• Molecular Weight: 925.95

Synonyms:

Chemical Property of 2-((S)-1-{[2-((S)-1-{[2-((S)-1-Benzyloxycarbonylamino-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carbonyl]-amino}-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carbonyl]-amino}-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carboxylic acid methyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 2-((S)-1-{[2-((S)-1-{[2-((S)-1-Benzyloxycarbonylamino-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carbonyl]-amino}-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carbonyl]-amino}-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carboxylic acid methyl ester

There total 8 articles about 2-((S)-1-{[2-((S)-1-{[2-((S)-1-Benzyloxycarbonylamino-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carbonyl]-amino}-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carbonyl]-amino}-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carboxylic acid methyl 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: 51.0%

2-((S)-1-Amino-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carboxylic acid methyl ester (213176-51-3) + 2-((S)-1-{[2-((S)-1-Benzyloxycarbonylamino-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carbonyl]-amino}-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carboxylic acid → 2-((S)-1-{[2-((S)-1-{[2-((S)-1-Benzyloxycarbonylamino-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carbonyl]-amino}-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carbonyl]-amino}-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carboxylic acid methyl ester (213176-53-5)

Guidance literature:

With 4-methyl-morpholine; isobutyl chloroformate; In dichloromethane; 0 deg C to Rt;

DOI:10.1016/S0040-4039(98)01170-8

Reference yield:

N-[(benzyloxy)carbonyl]-3-[(tert-butoxycarbonyl)amino]-L-alanine (16947-84-5,62234-36-0) → 2-((S)-1-{[2-((S)-1-{[2-((S)-1-Benzyloxycarbonylamino-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carbonyl]-amino}-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carbonyl]-amino}-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carboxylic acid methyl ester (213176-53-5)

Guidance literature:

Multi-step reaction with 7 steps

1: 93 percent / DPPA, Et₃N / dimethylformamide / 0 °C

2: 63 percent / Burgess reagent / tetrahydrofuran / 70 °C

3: 73 percent / DBU, BrCCl₃ / CH₂Cl₂ / 0 deg C to RT

4: H₂ / Pd/C / tetrahydrofuran / Ambient temperature

5: isobutyl chloroformate, NMM / CH₂Cl₂ / 0 deg C to RT

6: NaOH / H₂O; methanol / Ambient temperature

7: 51 percent / isobutyl chloroformate, NMM / CH₂Cl₂ / 0 deg C to Rt

With 4-methyl-morpholine; sodium hydroxide; Burgess Reagent; Bromotrichloromethane; diphenyl-phosphinic acid; hydrogen; 1,8-diazabicyclo[5.4.0]undec-7-ene; triethylamine; isobutyl chloroformate; palladium on activated charcoal; In tetrahydrofuran; methanol; dichloromethane; water; N,N-dimethyl-formamide;

DOI:10.1016/S0040-4039(98)01170-8

Reference yield:

(S)-2-((S)-2-Benzyloxycarbonylamino-3-tert-butoxycarbonylamino-propionylamino)-3-hydroxy-propionic acid methyl ester (213176-46-6) → 2-((S)-1-{[2-((S)-1-{[2-((S)-1-Benzyloxycarbonylamino-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carbonyl]-amino}-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carbonyl]-amino}-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carboxylic acid methyl ester (213176-53-5)

Guidance literature:

Multi-step reaction with 6 steps

1: 63 percent / Burgess reagent / tetrahydrofuran / 70 °C

2: 73 percent / DBU, BrCCl₃ / CH₂Cl₂ / 0 deg C to RT

3: H₂ / Pd/C / tetrahydrofuran / Ambient temperature

4: isobutyl chloroformate, NMM / CH₂Cl₂ / 0 deg C to RT

5: NaOH / H₂O; methanol / Ambient temperature

6: 51 percent / isobutyl chloroformate, NMM / CH₂Cl₂ / 0 deg C to Rt

With 4-methyl-morpholine; sodium hydroxide; Burgess Reagent; Bromotrichloromethane; hydrogen; 1,8-diazabicyclo[5.4.0]undec-7-ene; isobutyl chloroformate; palladium on activated charcoal; In tetrahydrofuran; methanol; dichloromethane; water;

DOI:10.1016/S0040-4039(98)01170-8

upstream raw materials:

2-((S)-1-Amino-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carboxylic acid methyl ester

N-[(benzyloxy)carbonyl]-3-[(tert-butoxycarbonyl)amino]-L-alanine

2-((S)-1-Benzyloxycarbonylamino-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carboxylic acid

2-((S)-1-Benzyloxycarbonylamino-2-tert-butoxycarbonylamino-ethyl)-oxazole-4-carboxylic acid methyl ester

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