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1,4-Dioxane → N-(3-(2-((2-methoxy-4-(piperazin-1-yl)phenyl)amino)-5-methyl-7-oxopyrido[2,3-d]pyrimidin-8(7H)-yl)phenyl)acrylamide

HRID 527433
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 527433
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[CH2:13][CH2:12][N:11](C(OC(C)(C)C)=O)[CH2:10][CH2:9]2)=[CH:4][C:3]=1[O:21][CH3:22].[CH3:23][C:24]1[C:33]2[CH:32]=[N:31][C:30](S(C)=O)=[N:29][C:28]=2[N:27]([C:37]2[CH:38]=[C:39]([NH:43][C:44](=[O:47])[CH:45]=[CH2:46])[CH:40]=[CH:41][CH:42]=2)[C:26](=[O:48])[CH:25]=1.CCN(C(C)C)C(C)C.O1CCOCC1>C(O)(C)(C)C>[CH3:22][O:21][C:3]1[CH:4]=[C:5]([N:8]2[CH2:9][CH2:10][NH:11][CH2:12][CH2:13]2)[CH:6]=[CH:7][C:2]=1[NH:1][C:30]1[N:31]=[CH:32][C:33]2[C:24]([CH3:23])=[CH:25][C:26](=[O:48])[N:27]([C:37]3[CH:38]=[C:39]([NH:43][C:44](=[O:47])[CH:45]=[CH2:46])[CH:40]=[CH:41][CH:42]=3)[C:28]=2[N:29]=1
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Komponenten

6

Edukt 4

HCID 312751,4-DioxaneHCID 81531DiisopropylethylamineHCID 67128946Tert-butyl 4-(4-amino-3-methoxyphenyl)piperazine-1-carboxylateHCID 86732024N-(3-(5-methyl-2-(methylsulfinyl)-7-oxopyrido[2,3-d]pyrimidin-8(7H)-yl)phenyl)acrylamide

Produkt 1

HCID 78319000N-(3-(2-((2-methoxy-4-(piperazin-1-yl)phenyl)amino)-5-methyl-7-oxopyrido[2,3-d]pyrimidin-8(7H)-yl)phenyl)acrylamide

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6386tert-ButanolLösungsmittel

Reaktionsbedingungen

Temperatur
90 °C

Versuchsvorschrift

To a suspension of tert-butyl 4-(4-amino-3-methoxyphenyl)piperazine-1-carboxylate (18a, 539 mg, 1.753 mmol) and N-(3-(5-methyl-2-(methylsulfinyl)-7-oxopyrido[2,3-d]pyrimidin-8(7H)-yl)phenyl)acrylamide (5b, 432 mg, 1.173 mmol) in tert-butanol (15 mL) at RT was added DIEA (0.61 mL, 3.52 mmol) followed by dioxane (6 mL). The reaction mixture was heated in a heating block at 90° C. for 20 h. LC-MS analysis indicated roughly 13% conversion to the desired product along with unreacted starting materials. The reaction mixture was concentrated on the rotovap and the crude residue was suspended in Et2O and filtered. The greenish brown amorphous solid was washed with Et2O (3×20 mL) and this removed most of the aniline starting material (18a). The crude material contained roughly 19% of the desired product (18b) along with recovered 5b. m/z (ESI, +ve ion) 611.9 (M+H)+. The crude residue was used in the subsequent step without further purification.

Quellen und Nachweise

ORD-Eintrag
ord-ab85f2eb4ad04e82930820ced58374d8
Quelldatensatz
uspto-grants-2016_05
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09346801B2

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