Sodium triacetoxyborohydride → {4-[(3-Methoxy-5,6,7,8-tetrahydroquinolin-8-ylamino)-methyl]-benzyl}-pyridin-2-ylmethyl-carbamic acid tert-butyl ester

HRID 983624

Reaktionsgleichung

Reaktionsgleichung von HRID 983624
[CH3:1][O:2][C:3]1[CH:4]=[N:5][C:6]2[CH:7]([NH2:13])[CH2:8][CH2:9][CH2:10][C:11]=2[CH:12]=1.[C:14]([O:18][C:19]([N:21]([CH2:29][C:30]1[CH:37]=[CH:36][C:33]([CH:34]=O)=[CH:32][CH:31]=1)[CH2:22][C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][N:24]=1)=[O:20])([CH3:17])([CH3:16])[CH3:15].[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+]>C(Cl)Cl>[C:14]([O:18][C:19](=[O:20])[N:21]([CH2:29][C:30]1[CH:31]=[CH:32][C:33]([CH2:34][NH:13][CH:7]2[C:6]3[N:5]=[CH:4][C:3]([O:2][CH3:1])=[CH:12][C:11]=3[CH2:10][CH2:9][CH2:8]2)=[CH:36][CH:37]=1)[CH2:22][C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][N:24]=1)([CH3:17])([CH3:16])[CH3:15]

Komponenten

5

Edukt 3

HCID 5049666Sodium triacetoxyborohydrideHCID 220186434-[[N-(t-butoxycarbonyl)-N-(2-pyridinylmethyl)amino]methyl]benzaldehydeHCID 22018774(3-Methoxy-5,6,7,8-tetrahydroquinolin-8-yl)-amine

Produkt 1

HCID 68900149{4-[(3-Methoxy-5,6,7,8-tetrahydroquinolin-8-ylamino)-methyl]-benzyl}-pyridin-2-ylmethyl-carbamic acid tert-butyl esterAusbeute 58 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a solution of (3-methoxy-5,6,7,8-tetrahydroquinolin-8-yl)-amine (0.27 g, 1.5 mmol) and 4-[[N-(t-butoxycarbonyl)-N-(2-pyridinylmethyl)amino]methyl]benzaldehyde (prepared as described by Bridger et al, U.S. patent application Ser. No 09/535,314) (0.57 g, 1.7 mmol) in CH2Cl2 (15 mL) was added NaBH(OAc)3 (0.48 g, 2.3 mmol) and the mixture stirred at room temperature for 16 h. Purification of the crude material by column chromatography on silica gel (5% MeOH/CH2Cl2) gave {4-[(3-methoxy-5,6,7,8-tetrahydroquinolin-8-ylamino)-methyl]-benzyl}-pyridin-2-ylmethyl-carbamic acid tert-butyl ester (0.43 g, 58%). 1H NMR (CDCl3) δ1.45 (m, 9H), 1.77 (m, 2H), 2.00 (m, 1H), 2.12 (m, 1H), 2.77 (m, 2H), 3.80 (m, 1H), 3.81 (s, 3H), 3.85 (d, 1H, J=12.0 Hz), 3.95 (d, 1H, J=12.0 Hz), 4.44 (br s, 2H), 4.55 (br s, 2H), 6.88 (d, 1H, J=1.5 Hz), 7.15 (m, 2H), 7.23 (br s, 2H), 7.34 (d, 2H, J=6.0 Hz), 7.62 (t, 1H, J=7.5 Hz), 8.11 (d, 1H, J=1.5 Hz), 8.52 (d, 1H, J=6.0 Hz).

Aufarbeitung

  1. customPurification of the crude material by column chromatography on silica gel (5% MeOH/CH2Cl2)

Quellen und Nachweise

ORD-Eintrag
ord-ed633498a5cf46759af8e5e7f6bc170a
Quelldatensatz
uspto-grants-2005_03
Patentnummer
US06864265B2

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