(S)-2-[2-(9H-Fluoren-9-ylmethoxycarbonylamino)-2-methyl-propionylamino]-propionic acid benzyl ester

Base Information

• Chemical Name: (S)-2-[2-(9H-Fluoren-9-ylmethoxycarbonylamino)-2-methyl-propionylamino]-propionic acid benzyl ester
• CAS No.: 203636-23-1
• Molecular Formula: C₂₉H₃₀N₂O₅
• Molecular Weight: 486.568
• Mol file: 203636-23-1.mol

Synonyms:(S)-2-[2-(9H-Fluoren-9-ylmethoxycarbonylamino)-2-methyl-propionylamino]-propionic acid benzyl ester

Chemical Property of (S)-2-[2-(9H-Fluoren-9-ylmethoxycarbonylamino)-2-methyl-propionylamino]-propionic acid benzyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (S)-2-[2-(9H-Fluoren-9-ylmethoxycarbonylamino)-2-methyl-propionylamino]-propionic acid benzyl ester

There total 3 articles about (S)-2-[2-(9H-Fluoren-9-ylmethoxycarbonylamino)-2-methyl-propionylamino]-propionic acid benzyl 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: 81.0%

H-Ala-OBzl (17831-01-5) + (9H-fluoren-9-yl)methyl (1-chloro-2-methyl-1-oxopropan-2-yl)carbamate (186096-81-1) → (S)-2-[2-(9H-Fluoren-9-ylmethoxycarbonylamino)-2-methyl-propionylamino]-propionic acid benzyl ester (203636-23-1)

Guidance literature:

With 1-Hydroxy-1,2,3-benzotriazole potassium salt; In dichloromethane;

DOI:10.1016/S0040-4039(97)10724-9

Reference yield: 80.0%

L-alanine benzyl ester hydrochloride (5557-81-3,5557-83-5,34404-37-0) + 2-(9H-Fluoren-9-ylmethoxycarbonylamino)-2-methyl-propionic acid pentafluorophenyl ester (203636-26-4) → (S)-2-[2-(9H-Fluoren-9-ylmethoxycarbonylamino)-2-methyl-propionylamino]-propionic acid benzyl ester (203636-23-1)

Guidance literature:

With 4-methyl-morpholine; In N,N-dimethyl-formamide; for 0.0111111h; microwave irradiation;

Reference yield:

N-[(9H-fluoren-9-ylmethoxy)carbonyl]-α-aminoisobutyric acid (94744-50-0) → (S)-2-[2-(9H-Fluoren-9-ylmethoxycarbonylamino)-2-methyl-propionylamino]-propionic acid benzyl ester (203636-23-1)

Guidance literature:

Multi-step reaction with 2 steps

1: 84 percent / thionyl chloride / CH₂Cl₂ / 24 h

2: 81 percent / 1-hydroxybenzotriazole potassium salt / CH₂Cl₂

With thionyl chloride; 1-Hydroxy-1,2,3-benzotriazole potassium salt; In dichloromethane;

DOI:10.1016/S0040-4039(97)10724-9

upstream raw materials:

H-Ala-OBzl

(9H-fluoren-9-yl)methyl (1-chloro-2-methyl-1-oxopropan-2-yl)carbamate

L-alanine benzyl ester hydrochloride

2-(9H-Fluoren-9-ylmethoxycarbonylamino)-2-methyl-propionic acid pentafluorophenyl ester

Downstream raw materials:

H-Aib-L-Ala-OBn

(S)-2-{2-Methyl-2-[((S)-pyrrolidine-2-carbonyl)-amino]-propionylamino}-propionic acid benzyl ester

(S)-2-[1-((S)-1-Benzyloxycarbonyl-ethylcarbamoyl)-1-methyl-ethylcarbamoyl]-pyrrolidine-1-carboxylic acid 9H-fluoren-9-ylmethyl ester