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1-(2-Hydroxyethyl)piperazine → (2S,4S)-2-[4-(2-Hydroxyethyl)-1-piperazinylcarbonyl]-4-methanesulfonyloxy-1-(4-nitrobenzyloxycarbonyl)pyrrolidine

HRID 362070
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 362070
[OH:1][CH2:2][CH2:3][N:4]1[CH2:9][CH2:8][NH:7][CH2:6][CH2:5]1.C(OP(C#N)(=O)OCC)C.C(N(CC)CC)C.[CH3:27][S:28]([O:31][C@H:32]1[CH2:36][N:35]([C:37]([O:39][CH2:40][C:41]2[CH:46]=[CH:45][C:44]([N+:47]([O-:49])=[O:48])=[CH:43][CH:42]=2)=[O:38])[C@H:34]([C:50](O)=[O:51])[CH2:33]1)(=[O:30])=[O:29]>C(#N)C>[OH:1][CH2:2][CH2:3][N:4]1[CH2:9][CH2:8][N:7]([C:50]([C@@H:34]2[CH2:33][C@H:32]([O:31][S:28]([CH3:27])(=[O:30])=[O:29])[CH2:36][N:35]2[C:37]([O:39][CH2:40][C:41]2[CH:46]=[CH:45][C:44]([N+:47]([O-:49])=[O:48])=[CH:43][CH:42]=2)=[O:38])=[O:51])[CH2:6][CH2:5]1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 4

HCID 76771-(2-Hydroxyethyl)piperazineHCID 8471TriethylamineHCID 76257Diethyl cyanophosphonateHCID 13502650trans-4-methanesulfonyloxy-1-(4-nitrobenzyloxycarbonyl)-L-proline

Produkt 1

HCID 86753697(2S,4S)-2-[4-(2-Hydroxyethyl)-1-piperazinylcarbonyl]-4-methanesulfonyloxy-1-(4-nitrobenzyloxycarbonyl)pyrrolidine
Ausbeute 67,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

1.11 g of 1-(2-hydroxyethyl)piperazine, 1.29 ml of diethylcyanophosphonate and 1.18 ml of triethylamine were added, in that order, whilst ice-cooling, to a solution of 3.00 g of trans-4-methanesulfonyloxy-1-(4-nitrobenzyloxycarbonyl)-L-proline [prepared as described in step 54(a)(i) above] in 35 ml of dry acetonitrile, and the resulting mixture was stirred at room temperature for 30 minutes. At the end of this time, the reaction mixture was concentrated by evaporation under reduced pressure, and the residue was purified by column chromatography through silica gel, using a 5:1 by volume mixture of ethyl acetate and methanol as the eluent. To give 2.60 g of the title compound, as a powder.

Aufarbeitung

  1. concentrationAt the end of this time, the reaction mixture was concentrated by evaporation under reduced pressure
  2. customthe residue was purified by column chromatography through silica gel
  3. additionby volume mixture of ethyl acetate and methanol as the eluent

Quellen und Nachweise

ORD-Eintrag
ord-81e260b85df044cc99ff82679eb032f9
Quelldatensatz
uspto-grants-1999_02
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US05866564

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