Tributylphosphine → HCID 22570378, Verbindung

HRID 1295117Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1295117
N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O.[OH:19][C:20]1[CH:21]=[C:22]2[C:26](=[CH:27][CH:28]=1)[NH:25][C:24]([CH2:29][CH:30]([CH3:35])[C:31]([O:33][CH3:34])=[O:32])=[CH:23]2.O[CH2:37][CH2:38][CH2:39][NH:40][C:41]1[CH:46]=[CH:45][CH:44]=[CH:43][N:42]=1.C(P(CCCC)CCCC)CCC>O1CCCC1>[CH3:35][CH:30]([CH2:29][C:24]1[NH:25][C:26]2[C:22]([CH:23]=1)=[CH:21][C:20]([O:19][CH2:37][CH2:38][CH2:39][NH:40][C:41]1[CH:46]=[CH:45][CH:44]=[CH:43][N:42]=1)=[CH:28][CH:27]=2)[C:31]([O:33][CH3:34])=[O:32]

Komponenten

6

Edukt 4

HCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 114124793-((Pyridin-2-yl)amino)propan-1-olHCID 22570322Methyl 3-(5-hydroxyindolyl)-2-methylpropanoate

Produkt 1

HCID 22570378HCID 22570378, VerbindungAusbeute 15,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

1,1′-(Azodicarbonyl)dipiperidine (0.13 g, 0.57 mmol) was added to the solution of methyl 3-(5-hydroxyindolyl)-2-methylpropanoate (0.062 g, 0.27 mmol), as prepared in the preceding step, 2-(3-hydroxypropyl)aminopyridine (0.06 g, 0.40 mmol), as prepared in step b of Example 1, and tri-n-butylphosphine (0.11 g, 0.53 mmol) in tetrahydrofuran (6.0 mL). After stirring at ambient temperature overnight (16 h), the reaction was concentrated and the residue was purified by flash chromatography on silica gel (10%–50% ethyl acetate in hexane) to give the title compound as a yellow oil (0.015 g, 15%). 1H-NMR (400 MHz, CDCl3) δ 8.07 (m, 1H), 7.40 (m, 1H), 7.21 (d, J=8.9 Hz, 1H), 7.08 (d, J=2.4 Hz, 1H), 7.04 (d, J=3.1 Hz, 1H), 6.88 (dd, J=8.9, 2.4 Hz, 1H), 6.54 (m, 1H), 6.41 (m, 1H), 4.89 (br s, 1H), 4.45 (dd, J=14.2, 7.3 Hz, 1H), 4.10 (m, 4H), 3.63 (s, 3H), 5.52 (q, J=6.5 Hz, 2H), 2.13 (m, 2H), 1.66 (m, 1H), 1.52 (m, 1H), 1.16 (d, J=7.1 Hz, 3H), 0.93 (m, 3H).

Aufarbeitung

  1. concentrationthe reaction was concentrated
  2. customthe residue was purified by flash chromatography on silica gel (10%–50% ethyl acetate in hexane)

Quellen und Nachweise

ORD-Eintrag
ord-2811d4d081bc486d824000a030f4f16e
Quelldatensatz
uspto-grants-2007_07
Patentnummer
US07241789B2

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