Pipemidic Acid → 2-(4-{[(3-Methoxyphenyl)amino]carbonothioyl}-1-piperazinyl)-8-ethyl-5-oxo-5,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylic Acid

HRID 455930

Reaktionsgleichung

Reaktionsgleichung von HRID 455930
[CH3:1][CH2:2][N:3]1[C:9]2[N:10]=[C:11]([N:14]3[CH2:19][CH2:18][NH:17][CH2:16][CH2:15]3)[N:12]=[CH:13][C:8]=2[C:6](=[O:7])[C:5]([C:20]([OH:22])=[O:21])=[CH:4]1.[CH3:23][O:24][C:25]1[CH:26]=[C:27]([N:31]=[C:32]=[S:33])[CH:28]=[CH:29][CH:30]=1.C(N(CC)CC)C>>[CH3:23][O:24][C:25]1[CH:26]=[C:27]([NH:31][C:32]([N:17]2[CH2:18][CH2:19][N:14]([C:11]3[N:12]=[CH:13][C:8]4[C:6](=[O:7])[C:5]([C:20]([OH:22])=[O:21])=[CH:4][N:3]([CH2:2][CH3:1])[C:9]=4[N:10]=3)[CH2:15][CH2:16]2)=[S:33])[CH:28]=[CH:29][CH:30]=1

Komponenten

4

Edukt 3

HCID 4831Pipemidic AcidHCID 8471TriethylamineHCID 1378323-Methoxyphenyl isothiocyanate

Produkt 1

HCID 454841492-(4-{[(3-Methoxyphenyl)amino]carbonothioyl}-1-piperazinyl)-8-ethyl-5-oxo-5,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylic Acid

Versuchsvorschrift

Pipemidic acid (25 mg, 0.0824 mmol), 3-methoxyphenyl isothiocyanate (11.6 μL, 0.0824 mmol) and triethylamine (23 μL, 0.165 mmol) were used. Purification on silica yielded compound 19 in Table 1, below (21.4 mg, 55%). 1H NMR (300 MHz, CDCl3) δ 9.31 (s, 1H), 8.67 (s, 1H), 7.47 (s, 1H), 7.30-7.21 (m, 1H), 6.80-6.68 (m, 3H), 4.32 (q, J=6.90 Hz, 2H), 4.23-3.89 (m, 8H), 3.79 (s, 3H), 1.48 (t, J=7.16 Hz, 3H) ppm.

Aufarbeitung

  1. customPurification on silica yielded compound 19 in Table 1

Quellen und Nachweise

ORD-Eintrag
ord-94488748c9d94f0daffb1ef235c5e0c3
Quelldatensatz
uspto-grants-2013_07
Patentnummer
US08497371B2

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