(2R,5S)-2-[(R)-(tert-Butyl-dimethyl-silanyloxy)-phenyl-methyl]-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazine-2-carboxylic acid ethyl ester

Base Information

Chemical Name:(2R,5S)-2-[(R)-(tert-Butyl-dimethyl-silanyloxy)-phenyl-methyl]-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazine-2-carboxylic acid ethyl ester
CAS No.:219691-00-6
Molecular Formula:C₂₇H₄₄N₂O₅Si
Molecular Weight:504.742
Hs Code.:

Synonyms:(2R,5S)-2-[(R)-(tert-Butyl-dimethyl-silanyloxy)-phenyl-methyl]-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazine-2-carboxylic acid ethyl ester

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Chemical Property of (2R,5S)-2-[(R)-(tert-Butyl-dimethyl-silanyloxy)-phenyl-methyl]-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazine-2-carboxylic acid ethyl ester

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Technology Process of (2R,5S)-2-[(R)-(tert-Butyl-dimethyl-silanyloxy)-phenyl-methyl]-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazine-2-carboxylic acid ethyl ester

There total 1 articles about (2R,5S)-2-[(R)-(tert-Butyl-dimethyl-silanyloxy)-phenyl-methyl]-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazine-2-carboxylic 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:

: 69739-34-0
t-butyldimethylsiyl triflate

: 100-52-7
benzaldehyde

: 219657-71-3
2,5-Bisethoxy-3-ethoxycarbonyl-6-isopropyl-3,6-dihydropyrazin

: 219691-00-6
(2R,5S)-2-[(R)-(tert-Butyl-dimethyl-silanyloxy)-phenyl-methyl]-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazine-2-carboxylic acid ethyl ester

: (2R,5S)-2-[(S)-(tert-Butyl-dimethyl-silanyloxy)-phenyl-methyl]-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazine-2-carboxylic acid ethyl ester

: (2S,5S)-2-[(S)-(tert-Butyl-dimethyl-silanyloxy)-phenyl-methyl]-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazine-2-carboxylic acid ethyl ester

Guidance literature:: With 1-ethyl-piperidine; 2,6-dimethylpyridine; tin(II) trifluoromethanesulfonate; Yield given. Multistep reaction. Yields of byproduct given;
DOI:10.1016/S0957-4166(98)00371-1

Reference yield: 80.0%

: 219691-00-6
(2R,5S)-2-[(R)-(tert-Butyl-dimethyl-silanyloxy)-phenyl-methyl]-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazine-2-carboxylic acid ethyl ester

: 219691-04-0
{(2R,5S)-2-[(R)-(tert-Butyl-dimethyl-silanyloxy)-phenyl-methyl]-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazin-2-yl}-methanol

Guidance literature:: With diisobutylaluminium hydride; In toluene; at 0 ℃;
DOI:10.1016/S0957-4166(98)00371-1

Reference yield:

: 219691-00-6
(2R,5S)-2-[(R)-(tert-Butyl-dimethyl-silanyloxy)-phenyl-methyl]-3,6-diethoxy-5-isopropyl-2,5-dihydro-pyrazine-2-carboxylic acid ethyl ester

: (2R,3R)-2-Amino-3-(tert-butyl-dimethyl-silanyloxy)-2-hydroxymethyl-3-phenyl-propionic acid

Guidance literature:: Multi-step reaction with 2 steps

1: 80 percent / DIBAL / toluene / 0 °C

2: 35 percent / 0.2N aq. HCl / tetrahydrofuran / Ambient temperature

With hydrogenchloride; diisobutylaluminium hydride; In tetrahydrofuran; toluene;
DOI:10.1016/S0957-4166(98)00371-1