N-methyl-2-pyrrolidone → HCID 68579778, Verbindung

HRID 2233900Notizen

Reaktionsgleichung

Br[C:2]1[CH:3]=[C:4]([CH:9]=[C:10]([N:12]2[CH2:17][CH2:16][CH:15]([NH:18][C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])[CH2:14][CH2:13]2)[CH:11]=1)[C:5]([O:7][CH3:8])=[O:6].O1C=[CH:29][CH:28]=[C:27]1P(C1OC=CC=1)C1OC=CC=1.CN1C(=O)CCC1.C([Sn](CCCC)(CCCC)CCCC)C=C>CCOC(C)=O>[CH2:29]([C:2]1[CH:3]=[C:4]([CH:9]=[C:10]([N:12]2[CH2:17][CH2:16][CH:15]([NH:18][C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])[CH2:14][CH2:13]2)[CH:11]=1)[C:5]([O:7][CH3:8])=[O:6])[CH:28]=[CH2:27]

Komponenten

Reaktionsbedingungen

Temperatur: 100 °C

Versuchsvorschrift

Methyl 3-bromo-5-{4-[(tert-butoxycarbonyl)amino]piperidin-1-yl}benzoate (Intermediate 104, 300 mg, 0.73 mmol), tris(dibenzylidineacetone)dipalladium (0) (26 mg, 0.03 mmol), trifurylphosphine (14 mg, 0.06 mmol) were weighed into a flask and placed under argon. NMP (3 ml) was added, followed by the dropwise addition of allyltributyl tin (0.25 ml, 0.80 mmol). The mixture was stirred at 100° C. After 64 h, the mixture was diluted with EtOAc and washed sequentially with water followed by brine. The organic phase was dried over MgSO4 and concentrated to dryness. The crude material was purified by chromatography on silica gel using 25% EtOAc/hexanes to give 174 mg of the title product.

Aufarbeitung

washwashed sequentially with water
dry with materialThe organic phase was dried over MgSO4
concentrationconcentrated to dryness
customThe crude material was purified by chromatography on silica gel using 25% EtOAc/hexanes

Quellen und Nachweise

ORD-Eintrag: ord-2d7099f7c9bf4f63bdc8f16684fcfa92
Quelldatensatz: uspto-grants-2010_05
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US07709503B2

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