tert-Butyl 4-(6-aminopyridin-3-yl)piperazine-1-carboxylate → 4-[6-(8-Cyclopentyl-6-ethoxymethyl-7-oxo-7,8-dihydro-pyrido[2,3-d]pyrimidin-2-ylamino)-pyridin-3-yl]-piperazine-1-carboxylic acid tert-butyl ester

HRID 586536

Reaktionsgleichung

Reaktionsgleichung von HRID 586536
[CH:1]1([N:6]2[C:11]3[N:12]=[C:13](S(C)=O)[N:14]=[CH:15][C:10]=3[CH:9]=[C:8]([CH2:19][O:20][CH2:21][CH3:22])[C:7]2=[O:23])[CH2:5][CH2:4][CH2:3][CH2:2]1.[C:24]([O:28][C:29]([N:31]1[CH2:36][CH2:35][N:34]([C:37]2[CH:38]=[N:39][C:40]([NH2:43])=[CH:41][CH:42]=2)[CH2:33][CH2:32]1)=[O:30])([CH3:27])([CH3:26])[CH3:25]>C1(C)C=CC=CC=1>[C:24]([O:28][C:29]([N:31]1[CH2:36][CH2:35][N:34]([C:37]2[CH:38]=[N:39][C:40]([NH:43][C:13]3[N:14]=[CH:15][C:10]4[CH:9]=[C:8]([CH2:19][O:20][CH2:21][CH3:22])[C:7](=[O:23])[N:6]([CH:1]5[CH2:5][CH2:4][CH2:3][CH2:2]5)[C:11]=4[N:12]=3)=[CH:41][CH:42]=2)[CH2:33][CH2:32]1)=[O:30])([CH3:27])([CH3:25])[CH3:26]

Komponenten

4

Edukt 2

HCID 11737525tert-Butyl 4-(6-aminopyridin-3-yl)piperazine-1-carboxylateHCID 117720128-cyclopentyl-6-ethoxymethyl-2-methanesulfinyl-8H-pyrido[2,3-d]pyrimidin-7-one

Produkt 1

HCID 113987324-[6-(8-Cyclopentyl-6-ethoxymethyl-7-oxo-7,8-dihydro-pyrido[2,3-d]pyrimidin-2-ylamino)-pyridin-3-yl]-piperazine-1-carboxylic acid tert-butyl esterAusbeute 14,7 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1140TolueneLösungsmittel

Versuchsvorschrift

8-Cyclopentyl-6-ethoxymethyl-2-methanesulfinyl-8H-pyrido[2,3-d]pyrimidin-7-one (1.0 g, 2.86 mmol) and 4-(6-amino-pyridin-3-yl)-piperazine-1-carboxylic acid tert-butyl ester (1.10 g, 3.95 mmol) were heated to reflux in toluene (10 mL) for 16 hours. The reaction mixture was cooled to room temperature and purified by silica gel chromatography to give 4-[6-(8-cyclopentyl-6-ethoxymethyl-7-oxo-7,8-dihydro-pyrido[2,3-d]pyrimidin-2-ylamino)-pyridin-3-yl]-piperazine-1-carboxylic acid tert-butyl ester as a yellow solid (0.140 g, 14.7%). 1H NMR δ (400 MHz, CDCl3) 8.59 (s, 1H), 8.26 (d, J=9.3 Hz, 1H), 7.97 (d, J=2.7 Hz, 1H), 7.6 (t, J=1.5 Hz, 1H), 7.38 (dd, J=2.7, 9.0 Hz, 1H), 5.89 (m, 1H), 4.55 (d, J=1.2 Hz, 1H), 3.66 (q, J=7.1 Hz, 2H), 3.60 (m, 4H), 3.11 (m, 4H), 2.34 (m, 2H), 2.07 (m, 2H), 1.88 (m, 2H), 1.69 (m, 2H), 1.48 (s, 9H), 1.30 (t, J=6.8 Hz, 3H).

Aufarbeitung

  1. custompurified by silica gel chromatography

Quellen und Nachweise

ORD-Eintrag
ord-7205ebdfcf594634a04379a5b18db8bb
Quelldatensatz
uspto-grants-2005_08
Patentnummer
US06936612B2

Verknüpfte Notizen

Wird geladen…