Tributylphosphine → Methyl 2-({5-[3-(2-pyridylamino)propoxy]indolyl}methyl)pentanoate

HRID 1295119Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1295119
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]([CH2:35][CH2:36][CH3:37])[C:31]([O:33][CH3:34])=[O:32])=[CH:23]2.O[CH2:39][CH2:40][CH2:41][NH:42][C:43]1[CH:48]=[CH:47][CH:46]=[CH:45][N:44]=1.C(P(CCCC)CCCC)CCC>O1CCCC1>[N:44]1[CH:45]=[CH:46][CH:47]=[CH:48][C:43]=1[NH:42][CH2:41][CH2:40][CH2:39][O:19][C:20]1[CH:21]=[C:22]2[C:26](=[CH:27][CH:28]=1)[NH:25][C:24]([CH2:29][CH:30]([CH2:35][CH2:36][CH3:37])[C:31]([O:33][CH3:34])=[O:32])=[CH:23]2

Komponenten

6

Edukt 4

HCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 114124793-((Pyridin-2-yl)amino)propan-1-olHCID 22570392Methyl 2-[(5-hydroxyindolyl)methyl]pentanoate

Produkt 1

HCID 22570346Methyl 2-({5-[3-(2-pyridylamino)propoxy]indolyl}methyl)pentanoateAusbeute 36 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

1,1′-(Azodicarbonyl)dipiperidine (0.12 g, 0.48 mmol) was added to the solution of methyl 2-[(5-hydroxyindolyl)methyl]pentanoate (0.03 g, 0.12 mmol), as prepared in the preceding step, 2-(3-hydroxypropyl)aminopyridine (0.026 g, 0.17 mmol), as prepared in step b of Example 1, and tri-n-butylphosphine (0.09 g, 0.46 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 (0.016 g, 36%). 1H-NMR (400 MHz, CDCl3) δ 8.08 (m, 1H), 7.39 (m, 1H), 7.20 (d, J=8.9 Hz, 1H), 7.07 (d, J=2.4 Hz, 1H), 7.02 (d, J=3.3 Hz, 1H), 6.88 (dd, J=8.9, 2.4 Hz, 1H), 6.53 (m, 1H), 6.40 (m, 2H), 4.32 (br s, 1H), 4.42 (m, 1H), 4.25 (m, 3H), 3.52 (m, 5H), 2.91 (m, 1H), 2.20 (m, 2H), 1.72 (m, 2H), 1.43 (m, 3H), 0.95 (t, J=7.2 Hz, 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-d10d9180ee8d415ca37cb04dd961a752
Quelldatensatz
uspto-grants-2007_07
Patentnummer
US07241789B2

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