Diisopropylethylamine → 5-(1-(6-Chloro-5-methylpyrimidin-4-yl)piperidin-4-yl)-3-isopropyl-1,2,4-oxadiazole

HRID 402511

Reaction equation

Cl.[CH:2]([C:5]1[N:9]=[C:8]([CH:10]2[CH2:15][CH2:14][NH:13][CH2:12][CH2:11]2)[O:7][N:6]=1)([CH3:4])[CH3:3].C(N(C(C)C)CC)(C)C.[Cl:25][C:26]1[C:31]([CH3:32])=[C:30](Cl)[N:29]=[CH:28][N:27]=1>ClCCl>[Cl:25][C:26]1[N:27]=[CH:28][N:29]=[C:30]([N:13]2[CH2:14][CH2:15][CH:10]([C:8]3[O:7][N:6]=[C:5]([CH:2]([CH3:4])[CH3:3])[N:9]=3)[CH2:11][CH2:12]2)[C:31]=1[CH3:32]

Participants

Conditions

Temperature: 27 °C

Procedure

A solution of 4-(3-isopropyl-1,2,4-oxadiazol-5-yl)piperidine hydrochloride (2.0 gm, 0.008369 moles) and diisopropylethylamine (2.78 gm, 0.0215 moles) in dichloromethane (30 ml) was added to an ice-cooled solution of 4,6-dichloro-5-methylpyrimidine (2.1 gm, 0.001295 moles) in dichloromethane (10 ml) and the reaction was stirred at 27° C. for 2 h. The reaction mixture was diluted with dichloromethane and washed with water and brine, dried over sodium sulfate and evaporated under reduced pressure. The crude was purified by flash column chromatography (silica gel, 15% ethyl acetate in hexane) to afford the title compound as a white solid (43% yield).

Workup

washwashed with water and brine
dry with materialdried over sodium sulfate
customevaporated under reduced pressure
customThe crude was purified by flash column chromatography (silica gel, 15% ethyl acetate in hexane)

Sources & evidence

ORD record: ord-1835680b8e5e4078a7d45ff6eb06ff2d
Source dataset: uspto-grants-2014_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08742117B2

Linked notes

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