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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1799546Generated: October 31, 2026

2-Methyl-2-butanol → 5-[2,6-Difluoro-4-(1-hydroxy-1-methylethyl)phenyl]-2-{[6-(2-hydroxyethyl)-5-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyridin-2-yl]amino}thiophene-3-carboxamide

https://huagongshe.com/reaction/1799546

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Methyl-2-butanolHCID 6405—
ReactantPotassium CarbonateHCID 11430—
Reactant2-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 11155794—
Reactant2-Chloro-6-(2-hydroxyethyl)-6,7-dihydro-5H-pyrrolo[3,4-b]pyridin-5-oneHCID 58216646—
Reactant2-Amino-5-[2,6-difluoro-4-(1-hydroxy-1-methylethyl)phenyl]thiophene-3-carboxamideHCID 59525619—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
Product5-[2,6-Difluoro-4-(1-hydroxy-1-methylethyl)phenyl]-2-{[6-(2-hydroxyethyl)-5-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyridin-2-yl]amino}thiophene-3-carboxamideHCID 44554108—

Reaction Conditions

Temperature100 °C

Reaction Steps

2-Amino-5-[2,6-difluoro-4-(1-hydroxy-1-methylethyl)phenyl]thiophene-3-carboxamide (90 mg, 0.29 mmol), 2-chloro-6-(2-hydroxyethyl)-6,7-dihydro-5H-pyrrolo[3,4-b]pyridin-5-one (61 mg, 0.29 mmol), Pd2dba3 (26.4 mg, 0.029 mmol), K2CO3 (43.8 mg, 0.317 mmol) and X-Phos (68.7 mg, 0.144 mmol) were added to a 2 mL microwave vial. Degassed tert-amyl alcohol (0.7 mL) was added and the vial evacuated and back-filled with nitrogen (3×). The resulting mixture was stirred at 100° C. overnight. Room temperature was attained, MeOH was added and the resulting mixture filtered through Celite. The filtrate was concentrated in vacuo while loading onto silica. Purification of the residue by silica gel chromatography (0-20% MeOH/EtOAc) gave the title compound as a pale yellow solid after triturating in EtOH. LRMS (APCI) calc'd for (C23H23F2N4O4S) [M+H]+, 489. found 489.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08344144B2
Source datasetuspto-grants-2013_01
ORD IDord-aa6a096d77c64eb4ad5b743056ee8529
Source noteuspto-grants-2013_01