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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2105365Generated: October 31, 2026

Sodium hydride → (R)-8-(1-Isopropyl-piperidin-4-yloxy)-4-methyl-2-(2,2,2-trifluoro-ethyl)-3,4-dihydro-2H-pyrazino[1,2-a]indol-1-one

https://huagongshe.com/reaction/2105365

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium hydrideHCID 24758—
Reactant2,2,2-Trifluoroethyl trifluoromethanesulfonateHCID 80366—
Reactant(R)-8-(1-isopropylpiperidin-4-yloxy)-4-methyl-3,4-dihydropyrazino[1,2-a]indol-1(2H)-oneHCID 16679612—
Product(R)-8-(1-Isopropyl-piperidin-4-yloxy)-4-methyl-2-(2,2,2-trifluoro-ethyl)-3,4-dihydro-2H-pyrazino[1,2-a]indol-1-oneHCID 1667821828%

Reaction Steps

The title compound was synthesized in analogy to example 17, from (R)-8-(1-isopropyl-piperidin-4-yloxy)-4-methyl-3,4-dihydro-2H-pyrazino[1,2-a]indol-1-one (example 8), 2,2,2-trifluoroethyl trifluoromethanesulfonate and sodium hydride, to give the desired product as a colorless oil (28%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07579351B2
Source datasetuspto-grants-2009_08
ORD IDord-29fb0b42443d4f0b946d1e592b6ae8a0
Source noteuspto-grants-2009_08