tert-butyl 2-((2S,3R)-1,3-bis(benzyloxy)-1-oxobutan-2-yl)-1-methyl-3-oxo-2,5-diazaspiro[3.4]octane-5-carboxylate

Base Information

Chemical Name:tert-butyl 2-((2S,3R)-1,3-bis(benzyloxy)-1-oxobutan-2-yl)-1-methyl-3-oxo-2,5-diazaspiro[3.4]octane-5-carboxylate
CAS No.:1621435-38-8
Molecular Formula:C₃₀H₃₈N₂O₆
Molecular Weight:522.642
Hs Code.:

Synonyms:tert-butyl 2-((2S,3R)-1,3-bis(benzyloxy)-1-oxobutan-2-yl)-1-methyl-3-oxo-2,5-diazaspiro[3.4]octane-5-carboxylate

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Chemical Property of tert-butyl 2-((2S,3R)-1,3-bis(benzyloxy)-1-oxobutan-2-yl)-1-methyl-3-oxo-2,5-diazaspiro[3.4]octane-5-carboxylate

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Technology Process of tert-butyl 2-((2S,3R)-1,3-bis(benzyloxy)-1-oxobutan-2-yl)-1-methyl-3-oxo-2,5-diazaspiro[3.4]octane-5-carboxylate

There total 7 articles about tert-butyl 2-((2S,3R)-1,3-bis(benzyloxy)-1-oxobutan-2-yl)-1-methyl-3-oxo-2,5-diazaspiro[3.4]octane-5-carboxylate 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: 57.0%

: 1621435-37-7
tert-butyl 2-(((2S,3R)-1,3-bis(benzyloxy)-1-oxobutan-2-yl)carbamoyl)-2-(1-hydroxyethyl)pyrrolidine-1-carboxylate

: 1621435-38-8
tert-butyl 2-((2S,3R)-1,3-bis(benzyloxy)-1-oxobutan-2-yl)-1-methyl-3-oxo-2,5-diazaspiro[3.4]octane-5-carboxylate

Guidance literature:: With di-isopropyl azodicarboxylate; triphenylphosphine; In tetrahydrofuran; at 20 ℃;

Reference yield:

: 575452-35-6,125347-83-3
1-(tert-butyl) 2-ethyl pyrrolidine-1,2-dicarboxylate

: 1621435-38-8
tert-butyl 2-((2S,3R)-1,3-bis(benzyloxy)-1-oxobutan-2-yl)-1-methyl-3-oxo-2,5-diazaspiro[3.4]octane-5-carboxylate

Guidance literature:: Multi-step reaction with 4 steps

1.1: lithium hexamethyldisilazane / tetrahydrofuran / 1 h / -20 °C

1.2: 1 h / -20 °C

2.1: sodium hydroxide / water; tetrahydrofuran / 5 h / 0 - 80 °C

3.1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; benzotriazol-1-ol; N-ethyl-N,N-diisopropylamine / dichloromethane / 12 h / 0 °C

4.1: triphenylphosphine; di-isopropyl azodicarboxylate / tetrahydrofuran / 20 °C

With di-isopropyl azodicarboxylate; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine; triphenylphosphine; sodium hydroxide; lithium hexamethyldisilazane; In tetrahydrofuran; dichloromethane; water;

Reference yield:

: 1621435-35-5
1-tert-butyl 2-ethyl 2-(1-hydroxyethyl)pyrrolidine-1,2-dicarboxylate

: 1621435-38-8
tert-butyl 2-((2S,3R)-1,3-bis(benzyloxy)-1-oxobutan-2-yl)-1-methyl-3-oxo-2,5-diazaspiro[3.4]octane-5-carboxylate

Guidance literature:: Multi-step reaction with 3 steps

1: sodium hydroxide / water; tetrahydrofuran / 5 h / 0 - 80 °C

2: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; benzotriazol-1-ol; N-ethyl-N,N-diisopropylamine / dichloromethane / 12 h / 0 °C

3: triphenylphosphine; di-isopropyl azodicarboxylate / tetrahydrofuran / 20 °C

With di-isopropyl azodicarboxylate; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine; triphenylphosphine; sodium hydroxide; In tetrahydrofuran; dichloromethane; water;