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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1989015Generated: October 31, 2026

Water → HCID 16059404, compound

https://huagongshe.com/reaction/1989015

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPotassium HydroxideHCID 14797—
Reactant2-[4-(4-Methyl-piperazin-1-yl)-phenylamino]-5-oxo-8-phenyl-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carbonitrileHCID 68677246—
Solventtert-ButanolHCID 6386—
ProductHCID 16059404HCID 1605940479%

Reaction Conditions

Temperature85 °C

Reaction Steps

To a solution of 2-[4-(4-Methyl-piperazin-1-yl)-phenylamino]-5-oxo-8-phenyl-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carbonitrile (Example 13F, 9 mg) in 1 mL of t-butanol was added potassium hydroxide (ground, 5 mg). The mixture was stirred at 85° C. for 1 hour. After cooling to rt, water was added and the precipitates were extracted into EtOAc. The organic layer was washed with brine and dried over Na2SO4. The solvent was evaporated under vacuum to leave 2-[4-(4-methyl-piperazin-1-yl)-phenylamino]-5-oxo-8-phenyl-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxylic acid amide as a yellow solid (7.2 mg, 79%). 1H NMR (300 MHz, CDCl3) δ (ppm): 10.64 (br, 1H), 10.30 (s, 1H), 9.17 (s, 1H), 7.71 (m, 3H), 7.53 (br, 1H), 7.43 (m, 2H), 6.94 (br, 2H), 6.35 (br, 2H), 5.06 (br, 1H), 3.12 (m, 4H), 2.59 (m, 4H), 2.37 (s, 3H). Mass Spectrum (LCMS, ESI pos.) Calcd. For C25H25N7O2: 456.51 (M+H), Found: 456.6.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07642270B2
Source datasetuspto-grants-2010_01
ORD IDord-4f0c4c20aae44b7d94301d84760c4f53
Source noteuspto-grants-2010_01