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Triethylamine → 4-(2-(5-Amino-8-methylbenzo[f][1,7]naphthyridin-2-yl)ethyl)phenyl ethyl carbonate

HRID 1479637
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1479637
[NH2:1][C:2]1[C:11]2[N:10]=[CH:9][C:8]([CH2:12][CH2:13][C:14]3[CH:19]=[CH:18][C:17]([OH:20])=[CH:16][CH:15]=3)=[CH:7][C:6]=2[C:5]2[CH:21]=[CH:22][C:23]([CH3:25])=[CH:24][C:4]=2[N:3]=1.C(N(CC)CC)C.Cl[C:34]([O:36][CH2:37][CH3:38])=[O:35]>ClCCl.O>[C:34](=[O:35])([O:36][CH2:37][CH3:38])[O:20][C:17]1[CH:16]=[CH:15][C:14]([CH2:13][CH2:12][C:8]2[CH:9]=[N:10][C:11]3[C:2]([NH2:1])=[N:3][C:4]4[CH:24]=[C:23]([CH3:25])[CH:22]=[CH:21][C:5]=4[C:6]=3[CH:7]=2)=[CH:19][CH:18]=1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 3

HCID 8471TriethylamineHCID 10928Ethyl chloroformateHCID 582135504-(2-(5-Amino-8-methylbenzo[f][1,7]naphthyridin-2-yl)ethyl)phenol

Produkt 1

HCID 582136884-(2-(5-Amino-8-methylbenzo[f][1,7]naphthyridin-2-yl)ethyl)phenyl ethyl carbonate

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittel
HCID 6344
Dichloromethane
Lösungsmittel
2×

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

To a solution of 4-(2-(5-amino-8-methylbenzo[f][1,7]naphthyridin-2-yl)ethyl)phenol (from Example 170) (1.0 equiv.) and triethyl amine (2 equiv.) in dichloromethane (0.10 M) at 0° C. was added ethyl chloroformate (1.2 equiv.). The resulting mixture was allowed to stir for 30 minutes at 0° C., after which it was diluted with water and dichloromethane. The biphasic layers were separated and the aqueous layer was washed twice with dichloromethane. The combined organic layers were dried over anhydrous Na2SO4 and the volatiles were removed in vacuo. The resulting residue was purified by a COMBIFLASH® system (ISCO) using 0-50% ethyl acetate in hexanes to provide 4-(2-(5-amino-8-methylbenzo[f][1,7]naphthyridin-2-yl)ethyl)phenyl ethyl carbonate as a solid. 1H NMR (Acetone-d6): δ 8.78 (s, 1H), 8.73 (s, 1H), 8.28 (d, 1H), 7.43 (s, 1H), 7.33 (d, 2H), 7.10-7.17 (m, 3H), 6.64 (br, 2H), 4.18 (t, 2H), 3.25 (t, 2H), 3.14 (t, 2H), 2.45 (s, 3H), 1.68-1.77 (m, 2H), 0.97 (t, 3H). LRMS [M+H]=416.2

Aufarbeitung

  1. customThe biphasic layers were separated
  2. washthe aqueous layer was washed twice with dichloromethane
  3. dry with materialThe combined organic layers were dried over anhydrous Na2SO4
  4. customthe volatiles were removed in vacuo
  5. customThe resulting residue was purified by a COMBIFLASH® system (ISCO)

Quellen und Nachweise

ORD-Eintrag
ord-f125ad66189d488c90e97f3aacf86e84
Quelldatensatz
uspto-grants-2016_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09408907B2

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