((R)-3-Benzyl-3-benzyloxycarbonylamino-2-oxo-pyrrolidin-1-yl)-acetic acid ethyl ester

Base Information

Chemical Name:((R)-3-Benzyl-3-benzyloxycarbonylamino-2-oxo-pyrrolidin-1-yl)-acetic acid ethyl ester
CAS No.:220569-34-6
Molecular Formula:C₂₃H₂₆N₂O₅
Molecular Weight:410.47
Hs Code.:

Synonyms:((R)-3-Benzyl-3-benzyloxycarbonylamino-2-oxo-pyrrolidin-1-yl)-acetic acid ethyl ester

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Chemical Property of ((R)-3-Benzyl-3-benzyloxycarbonylamino-2-oxo-pyrrolidin-1-yl)-acetic acid ethyl ester

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Technology Process of ((R)-3-Benzyl-3-benzyloxycarbonylamino-2-oxo-pyrrolidin-1-yl)-acetic acid ethyl ester

There total 4 articles about ((R)-3-Benzyl-3-benzyloxycarbonylamino-2-oxo-pyrrolidin-1-yl)-acetic acid ethyl 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:

: (2S,4R)-4-Benzyl-2-tert-butyl-4-[2-(ethoxycarbonylmethyl-amino)-ethyl]-5-oxo-oxazolidine-3-carboxylic acid benzyl ester

: 220569-34-6
((R)-3-Benzyl-3-benzyloxycarbonylamino-2-oxo-pyrrolidin-1-yl)-acetic acid ethyl ester

Guidance literature:: With benzotriazol-1-ol; In toluene; for 16h; Heating;
DOI:10.1016/S0968-0896(98)80022-9

Reference yield:

: 191980-50-4
(2S,4S)-4-benzyl-2-tert-butyl-5-oxo-oxazolidine-3-carboxylic acid benzyl ester

: 220569-34-6
((R)-3-Benzyl-3-benzyloxycarbonylamino-2-oxo-pyrrolidin-1-yl)-acetic acid ethyl ester

Guidance literature:: Multi-step reaction with 4 steps

1.1: potassium hexamethyldisilazide / tetrahydrofuran; toluene / 0.5 h / -78 °C

1.2: 77 percent / tetrahydrofuran; toluene / 16 h / -78 - 25 °C

2.1: ozone; NaHCO₃ / CH₂Cl₂; methanol / -78 °C

2.2: 95 percent / Me₂S / CH₂Cl₂; methanol / -78 - 25 °C

3.1: NaOAc; 4 Angstroem molecular sieves; NaCNBH₃ / methanol / 25 °C

4.1: 1-hydroxybenzotriazole / toluene / 16 h / Heating

With 4 A molecular sieve; sodium acetate; potassium hexamethylsilazane; sodium cyanoborohydride; sodium hydrogencarbonate; benzotriazol-1-ol; ozone; In tetrahydrofuran; methanol; dichloromethane; toluene; 1.1: Metallation / 1.2: Alkylation / 2.1: ozonolysis / 2.2: Reduction / 3.1: Alkylation / 4.1: Cyclization;
DOI:10.1016/S0968-0896(98)80022-9

Reference yield:

: 220569-30-2
(2S,4R)-4-benzyl-2-tert-butyl-5-oxo-4-(2-oxo-ethyl)-oxazolidine-3-carboxylic acid benzyl ester

: 220569-34-6
((R)-3-Benzyl-3-benzyloxycarbonylamino-2-oxo-pyrrolidin-1-yl)-acetic acid ethyl ester

Guidance literature:: Multi-step reaction with 2 steps

1: NaOAc; 4 Angstroem molecular sieves; NaCNBH₃ / methanol / 25 °C

2: 1-hydroxybenzotriazole / toluene / 16 h / Heating

With 4 A molecular sieve; sodium acetate; sodium cyanoborohydride; benzotriazol-1-ol; In methanol; toluene; 1: Alkylation / 2: Cyclization;
DOI:10.1016/S0968-0896(98)80022-9