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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 80621Generated: October 26, 2026

Cesium carbonate → (8S)-2-(morpholin-4-yl)-9-(2,3,4-trifluorobenzyl)-8-(trifluoro-methyl)-6,7,8,9-tetrahydro-4H-pyrimido[1,2-a]pyrimidin-4-one

https://huagongshe.com/reaction/80621

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant1-(Bromomethyl)-2,3,4-trifluorobenzeneHCID 2777050—
Reactant(S)-8-(Morpholin-4-yl)-2-(trifluoromethyl)-1,2,3,4-tetrahydropyrimido[1,2-a]pyrimidin-6-oneHCID 136238743—
SolventDimethylformamideHCID 6228—
Product(8S)-2-(morpholin-4-yl)-9-(2,3,4-trifluorobenzyl)-8-(trifluoro-methyl)-6,7,8,9-tetrahydro-4H-pyrimido[1,2-a]pyrimidin-4-oneHCID 49854300—

Reaction Steps

The product is prepared according to the procedure described in Example 22, using 100 mg of (8S)-2-morpholin-4-yl-8-trifluoromethyl-6,7,8,9-tetrahydropyrimido[1,2-a]pyrimidin-4-one (Example 1e), 214 mg of caesium carbonate and 82 mg of 1-(bromomethyl)-2,3,4-trifluorobenzene in 2 ml of dimethylformamide. After purification by preparative HPLC/MS (Method C), 76 mg of (8S)-2-(morpholin-4-yl)-9-(2,3,4-trifluorobenzyl)-8-(trifluoromethyl)-6,7,8,9-tetrahydro-4H-pyrimido[1,2-a]pyrimidin-4-one are obtained in the form of an oil, the characteristics of which are the following:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08846670B2
Source datasetuspto-grants-2014_09
ORD IDord-fb05c310a9b7498d8eb7f9f9c397a575
Source noteuspto-grants-2014_09