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 272505

反応式

HRID 272505 の反応式
[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]

参加物

4

実験手順

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).

後処理

  1. custompurified by silica gel chromatography

出典と根拠

ORDレコード
ord-8f5d48ab0c1a4467bc5ba95e908814a9
出典データセット
uspto-grants-2008_11
特許番号
US07456168B2

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