1,8-Diazabicyclo(5.4.0)undec-7-ene → Ethyl 6,8-difluoro-1-methyl-4-oxo-7-((S)-3-trifluoroacetylamino-1-pyrrolidinyl)-1H,4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate

HRID 893577Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 893577
[F:1][C:2]1[CH:3]=[C:4]2[C:9](=[C:10]([F:13])[C:11]=1F)[N:8]1[CH:14]([CH3:16])[S:15][C:7]1=[C:6]([C:17]([O:19][CH2:20][CH3:21])=[O:18])[C:5]2=[O:22].Cl.[F:24][C:25]([F:35])([F:34])[C:26]([NH:28][C@H:29]1[CH2:33][CH2:32][NH:31][CH2:30]1)=[O:27].C1CCN2C(=NCCC2)CC1>CN(C)C=O>[F:1][C:2]1[CH:3]=[C:4]2[C:9](=[C:10]([F:13])[C:11]=1[N:31]1[CH2:32][CH2:33][C@H:29]([NH:28][C:26](=[O:27])[C:25]([F:35])([F:34])[F:24])[CH2:30]1)[N:8]1[CH:14]([CH3:16])[S:15][C:7]1=[C:6]([C:17]([O:19][CH2:20][CH3:21])=[O:18])[C:5]2=[O:22]

Komponenten

5

Edukt 3

HCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 9973824ethyl 6,7,8-trifluoro-1-methyl-4-oxo-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylateHCID 42614571(3S)-(-)-3-(Trifluoroacetamido)pyrrolidine Hydrochloride

Produkt 1

HCID 54557724Ethyl 6,8-difluoro-1-methyl-4-oxo-7-((S)-3-trifluoroacetylamino-1-pyrrolidinyl)-1H,4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

A mixture of 1.34 g of ethyl 6,7,8-trifluoro-1-methyl-4-oxo-1H,4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate, 2.66 g of (S)-3-trifluoroacetylaminopyrrolidine hydrochloride [[α]D20 -28.6° (c=1, MeOH)], 1.80 g of 1.8-diazabicyclo[5,4,0]-7-undecene and 30 ml of N,N-dimethylformamide was stirred at room temperature for 5 hours. The reaction mixture was concentrated in vacuo, and water was added to the residue. The precipitate was collected by filtration and was chromatographed on silica gel using chloroform-methanol (8:2) to give the desired compound, which was recrystallized from methanol to give 0.80 g of pale yellow needles, m.p. 219°-224° C.

Aufarbeitung

  1. concentrationThe reaction mixture was concentrated in vacuo, and water
  2. additionwas added to the residue
  3. filtrationThe precipitate was collected by filtration
  4. customwas chromatographed on silica gel

Quellen und Nachweise

ORD-Eintrag
ord-076e8384be844882a0cf22874991912a
Quelldatensatz
uspto-grants-1992_06
Patentnummer
US05126337

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