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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 591625Generated: October 31, 2026

Isonicotinic Acid → HCID 135939100, compound

https://huagongshe.com/reaction/591625

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsonicotinic AcidHCID 5922—
ReactantTriethylamineHCID 8471—
Reactant1-HydroxybenzotriazoleHCID 75771—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
Reactant5,7-dimethoxy-2-(4-(piperazin-1-yl)phenyl)quinazolin-4(3H)-oneHCID 135939088—
SolventTetrahydrofuranHCID 8028—
ProductHCID 135939100HCID 13593910034.3%

Reaction Steps

To a solution of isonicotinic acid (0.083 g, 0.68 mmol) in THF (20 mL) was added HOBt (0.099 g, 0.74 mmol), EDCl (0.141 g, 0.74 mmol), Et3N (0.10 mL, 0.74 mmol) and 5,7-dimethoxy-2-(4-(piperazin-1-yl)phenyl)quinazolin-4(3H)-one (0.250 g, 0.68 mmol). The resulting solution was stirred overnight at room temperature. The solution was concentrated in vacuo and the resulting material was purified by flash chromatography on silica gel, eluting with 10% to 60% of 92:7:1 CHCl3/MeOH/concentrated NH4OH in CH2Cl2, to afford the title compound (0.110 g, 34%). 1H NMR (300 MHz, DMSO-d6): δ 11.79 (s, 1H), 8.58-8.79 (m, 2H), 8.12 (d, J=9.0 Hz, 2H), 7.45 (d, J=6.0 Hz, 2H), 7.04 (d, J=9.0 Hz, 2H), 6.69 (s, 1H), 6.47 (s, 1H), 3.64-4.06 (m, 9H), 3.22-3.54 (m, 5H). APCI MS m/z 472 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09238640B2
Source datasetuspto-grants-2016_01
ORD IDord-9ec187eb57124de4830fd142d572b860
Source noteuspto-grants-2016_01