1,8-Diazabicyclo(5.4.0)undec-7-ene → 1-(4-(Cyanomethyl)tetrahydro-2H-thiopyran-4-yl)-3-((4-fluorophenyl)amino)-1H-pyrazole-4-carboxamide

HRID 521213Notes

Reaction equation

[F:1][C:2]1[CH:7]=[CH:6][C:5]([NH:8][C:9]2[C:13]([C:14]([NH2:16])=[O:15])=[CH:12][NH:11][N:10]=2)=[CH:4][CH:3]=1.O=[S:18]1(=O)[CH2:23][CH2:22][C:21](=[CH:24][C:25]#[N:26])[CH2:20][CH2:19]1.C1CCN2C(=NCCC2)CC1>CC#N>[C:25]([CH2:24][C:21]1([N:11]2[CH:12]=[C:13]([C:14]([NH2:16])=[O:15])[C:9]([NH:8][C:5]3[CH:4]=[CH:3][C:2]([F:1])=[CH:7][CH:6]=3)=[N:10]2)[CH2:22][CH2:23][S:18][CH2:19][CH2:20]1)#[N:26]

Participants

Conditions

Temperature: 80 °C

Procedure

3-[(4-Fluorophenyl)amino]-1H-pyrazole-4-carboxamide (Intermediate 31-7) (100 mg, 0.45 mmol) was added to a mixture of 2-(1,1-dioxidodihydro-2H-thiopyran-4(3H)-ylidene)acetonitrile (160 mg, 0.91 mmol) in MeCN (1.51 mL). DBU (0.068 mL, 0.45 mmol) was then added, the reaction vessel was capped and the reaction mixture was heated to 80° C. for 4 hours. The reaction mixture was cooled to ambient temperature, and purified by reverse phase preparative HPLC (using a gradient elution of MeCN/water, with 0.1% v/v TFA modifier). Desired fractions were combined, basified with saturated aqueous NaHCO3, and extracted with EtOAc. The organic layer was dried over anhydrous NaSO4, filtered, and concentrated in vacuo to afford the title compound, Example #7.

Workup

customthe reaction vessel was capped
temperatureThe reaction mixture was cooled to ambient temperature
custompurified by reverse phase preparative HPLC (
washa gradient elution of MeCN/water
extractionextracted with EtOAc
dry with materialThe organic layer was dried over anhydrous NaSO4
filtrationfiltered
concentrationconcentrated in vacuo

Sources & evidence

ORD record: ord-94be6161e58f4709bfb7180c0d923dd9
Source dataset: uspto-grants-2016_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09328099B2

Reaction notes

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