(2S,4R)-2-[3-acetoxy-1-[(2-methoxyethoxy)methoxy]-2-(phenylselanyl)propyl]-4-[(triisopropylsilyl)oxy]pyrrolidine-1-carboxylic acid tert-butyl ester

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Chemical Name:(2S,4R)-2-[3-acetoxy-1-[(2-methoxyethoxy)methoxy]-2-(phenylselanyl)propyl]-4-[(triisopropylsilyl)oxy]pyrrolidine-1-carboxylic acid tert-butyl ester
CAS No.:946435-47-8
Molecular Formula:C₃₃H₅₇NO₈SeSi
Molecular Weight:702.863
Hs Code.:

(2S,4R)-2-[3-acetoxy-1-[(2-methoxyethoxy)methoxy]-2-(phenylselanyl)propyl]-4-[(triisopropylsilyl)oxy]pyrrolidine-1-carboxylic acid tert-butyl ester

Synonyms:(2S,4R)-2-[3-acetoxy-1-[(2-methoxyethoxy)methoxy]-2-(phenylselanyl)propyl]-4-[(triisopropylsilyl)oxy]pyrrolidine-1-carboxylic acid tert-butyl ester

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Chemical Property of (2S,4R)-2-[3-acetoxy-1-[(2-methoxyethoxy)methoxy]-2-(phenylselanyl)propyl]-4-[(triisopropylsilyl)oxy]pyrrolidine-1-carboxylic acid tert-butyl ester

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Technology Process of (2S,4R)-2-[3-acetoxy-1-[(2-methoxyethoxy)methoxy]-2-(phenylselanyl)propyl]-4-[(triisopropylsilyl)oxy]pyrrolidine-1-carboxylic acid tert-butyl ester

There total 11 articles about (2S,4R)-2-[3-acetoxy-1-[(2-methoxyethoxy)methoxy]-2-(phenylselanyl)propyl]-4-[(triisopropylsilyl)oxy]pyrrolidine-1-carboxylic acid tert-butyl 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: 80.0%

: 946435-46-7
(2S,4R)-2-[3-hydroxy-1-[(2-methoxyethoxy)methoxy]-2-(phenylselanyl)propyl]-4-[(triisopropylsilyl)oxy]pyrrolidine-1-carboxylic acid tert-butyl ester

: 108-24-7
acetic anhydride

: 946435-47-8
(2S,4R)-2-[3-acetoxy-1-[(2-methoxyethoxy)methoxy]-2-(phenylselanyl)propyl]-4-[(triisopropylsilyl)oxy]pyrrolidine-1-carboxylic acid tert-butyl ester

Guidance literature:: With pyridine; dmap; In dichloromethane; for 3.5h;
DOI:10.1021/ol071147z

Reference yield:

: 40216-83-9
L-4-hydroxyproline methyl ester hydrochloride

: 946435-47-8
(2S,4R)-2-[3-acetoxy-1-[(2-methoxyethoxy)methoxy]-2-(phenylselanyl)propyl]-4-[(triisopropylsilyl)oxy]pyrrolidine-1-carboxylic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 9 steps

1: Et₃N / CH₂Cl₂ / 2.33 h / 0 - 20 °C

2: 94 percent / imidazole / CH₂Cl₂ / 48 h

3: 91 percent / NaBH₄; CaCl₂ / tetrahydrofuran; ethanol / 0 °C

4: 91 percent / (COCl)2; DMSO; Et₃N / CH₂Cl₂ / 0.83 h / -78 - 20 °C

5: 63 percent / t-BuLi / pentane; tetrahydrofuran / 2 h / -78 °C

6: 83 percent / i-Pr₂NEt; Bu₄NI / tetrahydrofuran / 20 h / Heating

7: 98 percent / ethyl acetate; H₂O / 0.25 h

8: 98 percent / LiAlH₄ / diethyl ether / 0.33 h / 0 °C

9: 80 percent / pyridine; DMAP / CH₂Cl₂ / 3.5 h

With pyridine; 1H-imidazole; dmap; sodium tetrahydroborate; lithium aluminium tetrahydride; oxalyl dichloride; tert.-butyl lithium; tetra-(n-butyl)ammonium iodide; dimethyl sulfoxide; triethylamine; N-ethyl-N,N-diisopropylamine; calcium chloride; In tetrahydrofuran; diethyl ether; ethanol; dichloromethane; water; ethyl acetate; pentane; 4: Swern oxidation;
DOI:10.1021/ol071147z

Reference yield:

: 946435-44-5
(2S,4R)-2-[(2Z)-3-ethoxy-1-[(2-methoxyethoxy)methoxy]allyl]-4-[(triisopropylsilyl)oxy]pyrrolidine-1-carboxylic acid tert-butyl ester

: 946435-47-8
(2S,4R)-2-[3-acetoxy-1-[(2-methoxyethoxy)methoxy]-2-(phenylselanyl)propyl]-4-[(triisopropylsilyl)oxy]pyrrolidine-1-carboxylic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 3 steps

1: 98 percent / ethyl acetate; H₂O / 0.25 h

2: 98 percent / LiAlH₄ / diethyl ether / 0.33 h / 0 °C

3: 80 percent / pyridine; DMAP / CH₂Cl₂ / 3.5 h

With pyridine; dmap; lithium aluminium tetrahydride; In diethyl ether; dichloromethane; water; ethyl acetate;
DOI:10.1021/ol071147z