Technology Process of (2S)-2-(2,2,2-trifluoroacetamido)-N-[(E)-1-(3,4-dihydroquinolin-1(2H)-yl)-5-((S)-2,2-dimethyl-1,3-dioxolan-4-yl)-1-oxopent-4-en-2-yl]-3-phenylpropanamide
There total 6 articles about (2S)-2-(2,2,2-trifluoroacetamido)-N-[(E)-1-(3,4-dihydroquinolin-1(2H)-yl)-5-((S)-2,2-dimethyl-1,3-dioxolan-4-yl)-1-oxopent-4-en-2-yl]-3-phenylpropanamide which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
(S)-2-(2,2,2-trifluoroacetamido)-N-[2-(3,4-dihydroquinolin-1(2H)-yl)-2-oxoethyl]-3-phenylpropanamide;
With
zinc(II) chloride; lithium diisopropyl amide;
In
tetrahydrofuran;
at -78 ℃;
for 0.5h;
Inert atmosphere;
1-((4R)-2,2-dimethyldioxolan-4-yl)allyl-ethylcarbonate;
With
bis(η3-allyl-μ-chloropalladium(II)); triphenylphosphine;
In
tetrahydrofuran;
at 20 ℃;
for 0.166667h;
optical yield given as %de;
diastereoselective reaction;
Inert atmosphere;
DOI:10.1039/c0ob00628a
- Guidance literature:
-
Multi-step reaction with 6 steps
1.1: 4-methyl-morpholine; chloroformic acid ethyl ester / tetrahydrofuran / 0.17 h / -20 °C / Inert atmosphere
1.2: 0.25 h / -20 °C / Inert atmosphere
2.1: palladium 10% on activated carbon; hydrogen / methanol / Inert atmosphere
3.1: O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine / dichloromethane / 0.25 h / 0 °C / Inert atmosphere
3.2: 0.17 h / 0 °C / Inert atmosphere
4.1: palladium 10% on activated carbon; hydrogen / methanol / Inert atmosphere
5.1: triethylamine / methanol / 0 °C / Inert atmosphere
5.2: 6 h / Inert atmosphere
6.1: zinc(II) chloride; lithium diisopropyl amide / tetrahydrofuran / 0.5 h / -78 °C / Inert atmosphere
6.2: 0.17 h / 20 °C / Inert atmosphere
With
4-methyl-morpholine; palladium 10% on activated carbon; hydrogen; chloroformic acid ethyl ester; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; triethylamine; N-ethyl-N,N-diisopropylamine; zinc(II) chloride; lithium diisopropyl amide;
In
tetrahydrofuran; methanol; dichloromethane;
DOI:10.1039/c0ob00628a
- Guidance literature:
-
Multi-step reaction with 5 steps
1.1: palladium 10% on activated carbon; hydrogen / methanol / Inert atmosphere
2.1: O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine / dichloromethane / 0.25 h / 0 °C / Inert atmosphere
2.2: 0.17 h / 0 °C / Inert atmosphere
3.1: palladium 10% on activated carbon; hydrogen / methanol / Inert atmosphere
4.1: triethylamine / methanol / 0 °C / Inert atmosphere
4.2: 6 h / Inert atmosphere
5.1: zinc(II) chloride; lithium diisopropyl amide / tetrahydrofuran / 0.5 h / -78 °C / Inert atmosphere
5.2: 0.17 h / 20 °C / Inert atmosphere
With
palladium 10% on activated carbon; hydrogen; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; triethylamine; N-ethyl-N,N-diisopropylamine; zinc(II) chloride; lithium diisopropyl amide;
In
tetrahydrofuran; methanol; dichloromethane;
DOI:10.1039/c0ob00628a