Diisopropylethylamine → 4-(4-Hydroxyphenyl)-1-[3-(trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperidin-4-ol

HRID 1675164

Reaktionsgleichung

CCN(C(C)C)C(C)C.Cl[C:11]1[CH:12]=[CH:13][C:14]2[N:15]([C:17]([C:20]([F:23])([F:22])[F:21])=[N:18][N:19]=2)[N:16]=1.[OH:24][C:25]1[CH:30]=[CH:29][C:28]([C:31]2([OH:37])[CH2:36][CH2:35][NH:34][CH2:33][CH2:32]2)=[CH:27][CH:26]=1>CN(C=O)C>[OH:24][C:25]1[CH:30]=[CH:29][C:28]([C:31]2([OH:37])[CH2:32][CH2:33][N:34]([C:11]3[CH:12]=[CH:13][C:14]4[N:15]([C:17]([C:20]([F:23])([F:22])[F:21])=[N:18][N:19]=4)[N:16]=3)[CH2:35][CH2:36]2)=[CH:27][CH:26]=1

Komponenten

Reaktionsbedingungen

Temperatur: 80 °C

Versuchsvorschrift

DIPEA (1.174 mL, 6.74 mmol) was added to 6-chloro-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine (1 g, 4.49 mmol) and 4-(4-hydroxyphenyl)piperidin-4-ol (0.955 g, 4.94 mmol) in DMF (10 mL). The resulting solution was stirred at 80° C. for 1 hour. The reaction mixture was cooled to room temperature then evaporated to dryness. The residues were triturated with water and the resulting solid collected by filtration, washed with further water followed by ether, then dried under vacuum to afford 4-(4-hydroxyphenyl)-1-[3-(trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperidin-4-ol (1.680 g, 99%) as a solid.

Aufarbeitung

temperatureThe reaction mixture was cooled to room temperature
customthen evaporated to dryness
customThe residues were triturated with water
filtrationthe resulting solid collected by filtration
washwashed with further water
customdried under vacuum

Quellen und Nachweise

ORD-Eintrag: ord-0783dca6274643fb9353a91a520e9117
Quelldatensatz: uspto-grants-2011_08
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US08003649B2

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