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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 336884Generated: October 30, 2026

Methylamine → 3-methyl-1-(4-(4-propionylpiperazin-1-yl)-3-(trifluoromethyl)phenyl)-9-(quinolin-3-yl)pyrimido[5,4-c]quinoline-2,4(1H,3H)-dione

https://huagongshe.com/reaction/336884

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethylamineHCID 6329—
Reactant1-(4-(4-propionylpiperazin-1-yl)-3-(trifluoromethyl)phenyl)-9-(quinolin-3-yl)-1H-[1,3]oxazino[5,4-c]quinoline-2,4-dioneHCID 46191574—
SolventTetrahydrofurane dichloromethaneHCID 21919333—
Product3-methyl-1-(4-(4-propionylpiperazin-1-yl)-3-(trifluoromethyl)phenyl)-9-(quinolin-3-yl)pyrimido[5,4-c]quinoline-2,4(1H,3H)-dioneHCID 4619162814.7%

Reaction Conditions

Temperature40 °C

Reaction Steps

To a solution of compound 5.6 1-(4-(4-propionylpiperazin-1-yl)-3-(trifluoromethyl)phenyl)-9-(quinolin-3-yl)-1H-[1,3]oxazino[5,4-c]quinoline-2,4-dione (20 mg, 0.032 mmol, 1 equiv.) in THF/CH2Cl2 (5 mL, 1:1) at room temperature was added MeNH2 (5 mg, 0.16 mmol, 5 equiv.). The resulting solution was heated to 40° C. and stirred for 2h. Upon concentration, the mixture was purified via preparative LC-MS (CH3CN:H2O) to furnish the desired compound 5.7 3-methyl-1-(4-(4-propionylpiperazin-1-yl)-3-(trifluoromethyl)phenyl)-9-(quinolin-3-yl)pyrimido[5,4-c]quinoline-2,4(1H,3H)-dione (3 mg). LC-MS(M+H): 639.49

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08889706B2
Source datasetuspto-grants-2014_11
ORD IDord-b190736e3f8640e785b076a0d1968a55
Source noteuspto-grants-2014_11