Solketal → (2,2-Dimethyl-1,3-dioxolan-4-yl)methyl 1-cyclopropyl-6-fluoro-4-oxo-7-(4-propylpiperazin-1-yl)-1,4-dihydroquinoline-3-carboxylate

HRID 1479221

Reaktionsgleichung

Reaktionsgleichung von HRID 1479221
[CH:1]1([N:4]2[C:13]3[C:8](=[CH:9][C:10]([F:23])=[C:11]([N:14]4[CH2:19][CH2:18][N:17]([CH2:20][CH2:21][CH3:22])[CH2:16][CH2:15]4)[CH:12]=3)[C:7](=[O:24])[C:6]([C:25]([OH:27])=[O:26])=[CH:5]2)[CH2:3][CH2:2]1.[CH3:28][C:29]1([CH3:36])[O:33][CH:32]([CH2:34]O)[CH2:31][O:30]1.C(N(CC)CC)C.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>ClCCl>[CH:1]1([N:4]2[C:13]3[C:8](=[CH:9][C:10]([F:23])=[C:11]([N:14]4[CH2:19][CH2:18][N:17]([CH2:20][CH2:21][CH3:22])[CH2:16][CH2:15]4)[CH:12]=3)[C:7](=[O:24])[C:6]([C:25]([O:27][CH2:34][CH:32]3[CH2:31][O:30][C:29]([CH3:36])([CH3:28])[O:33]3)=[O:26])=[CH:5]2)[CH2:3][CH2:2]1

Komponenten

6

Edukt 4

HCID 7528SolketalHCID 8471TriethylamineHCID 4716651-Cyclopropyl-6-fluoro-4-oxo-7-(4-propylpiperazin-1-yl)quinoline-3-carboxylic acidHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)

Produkt 1

HCID 58455287(2,2-Dimethyl-1,3-dioxolan-4-yl)methyl 1-cyclopropyl-6-fluoro-4-oxo-7-(4-propylpiperazin-1-yl)-1,4-dihydroquinoline-3-carboxylateAusbeute 89 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

1-cyclopropyl-6-fluoro-4-oxo-7-(4-propylpiperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid (8.86 g, 23.70 mmol) was dissolved in anhydrous dichloromethane (370 ml) under argon. 2,2-dimethyl-1,3-dioxolane-4-methanol (4.71 g, 35.60 mmol), triethylamine (9.59 g, 94.80 mmol) and HBTU (9.90 g, 26.10 mmol) were added and the reaction mixture was stirred at room temperature for three days (exclusion of light). The reaction mixture was washed with saturated NaHCO3 solution (500 ml), aqueous (pH 5) hydrochloric acid (500 ml) and water (500 ml) successively. The organic layer was dried over Na2SO4 and the solvent was removed under reduced pressure, yielding 10.28 g (89%) of a yellow solid.

Aufarbeitung

  1. washThe reaction mixture was washed with saturated NaHCO3 solution (500 ml), aqueous (pH 5) hydrochloric acid (500 ml) and water (500 ml) successively
  2. dry with materialThe organic layer was dried over Na2SO4
  3. customthe solvent was removed under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-9ec6f4cfda8d484c877f4ecbc4dcbcea
Quelldatensatz
uspto-grants-2016_08
Patentnummer
US09408919B2

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