(4R,5S)-1-tert-butoxycarbonyl-4-(3-cyclopentyloxy-4-methoxyphenyl)-5-hydroxymethylpyrrolidin-2-one

Base Information

Chemical Name:(4R,5S)-1-tert-butoxycarbonyl-4-(3-cyclopentyloxy-4-methoxyphenyl)-5-hydroxymethylpyrrolidin-2-one
CAS No.:191610-55-6
Molecular Formula:C₂₂H₃₁NO₆
Molecular Weight:405.491
Hs Code.:

Synonyms:(4R,5S)-1-tert-butoxycarbonyl-4-(3-cyclopentyloxy-4-methoxyphenyl)-5-hydroxymethylpyrrolidin-2-one

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Chemical Property of (4R,5S)-1-tert-butoxycarbonyl-4-(3-cyclopentyloxy-4-methoxyphenyl)-5-hydroxymethylpyrrolidin-2-one

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Technology Process of (4R,5S)-1-tert-butoxycarbonyl-4-(3-cyclopentyloxy-4-methoxyphenyl)-5-hydroxymethylpyrrolidin-2-one

There total 6 articles about (4R,5S)-1-tert-butoxycarbonyl-4-(3-cyclopentyloxy-4-methoxyphenyl)-5-hydroxymethylpyrrolidin-2-one 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: 92.0%

: 191610-54-5
(4R,5S)-1-tert-butoxycarbonyl-5-tert-butyldiphenylsiloxymethyl-4-(3-cyclopentyloxy-4-methoxyphenyl)pyrrolidine-2-one

: 191610-55-6
(4R,5S)-1-tert-butoxycarbonyl-4-(3-cyclopentyloxy-4-methoxyphenyl)-5-hydroxymethylpyrrolidin-2-one

Guidance literature:: With triethylamine hydrofluoride; In tetrahydrofuran; for 120h; Ambient temperature;
DOI:10.1055/s-1997-3182

Reference yield:

: 37942-01-1
5-bromo-2-methoxyphenol

: 191610-55-6
(4R,5S)-1-tert-butoxycarbonyl-4-(3-cyclopentyloxy-4-methoxyphenyl)-5-hydroxymethylpyrrolidin-2-one

Guidance literature:: Multi-step reaction with 3 steps

1: 87 percent / K₂CO₃ / dimethylformamide / 24 h / 60 °C

2: 1.) BuLi, CuBr*SMe₂, 2.) Me₃SiCl / 1.) Et₂O, hexane, THF, -78 deg C, 1 h, 2.) THF, Et₂O, hexane, -78 deg C, 1.5 h

3: 92 percent / Et₃N*HF / tetrahydrofuran / 120 h / Ambient temperature

With n-butyllithium; chloro-trimethyl-silane; copper(I) bromide dimethylsulfide complex; potassium carbonate; triethylamine hydrofluoride; In tetrahydrofuran; N,N-dimethyl-formamide;
DOI:10.1055/s-1997-3182

Reference yield:

: 137-43-9
Cyclopentyl bromide

: 191610-55-6
(4R,5S)-1-tert-butoxycarbonyl-4-(3-cyclopentyloxy-4-methoxyphenyl)-5-hydroxymethylpyrrolidin-2-one

Guidance literature:: Multi-step reaction with 3 steps

1: 87 percent / K₂CO₃ / dimethylformamide / 24 h / 60 °C

2: 1.) BuLi, CuBr*SMe₂, 2.) Me₃SiCl / 1.) Et₂O, hexane, THF, -78 deg C, 1 h, 2.) THF, Et₂O, hexane, -78 deg C, 1.5 h

3: 92 percent / Et₃N*HF / tetrahydrofuran / 120 h / Ambient temperature

With n-butyllithium; chloro-trimethyl-silane; copper(I) bromide dimethylsulfide complex; potassium carbonate; triethylamine hydrofluoride; In tetrahydrofuran; N,N-dimethyl-formamide;
DOI:10.1055/s-1997-3182