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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 506677Generated: November 2, 2026

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

https://huagongshe.com/reaction/506677

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium hydrideHCID 24758—
ReactantBromomethylcyclopropaneHCID 81503—
Reactant(R)-8-(1-isopropylpiperidin-4-yloxy)-4-methyl-3,4-dihydropyrazino[1,2-a]indol-1(2H)-oneHCID 16679612—
Product(R)-2-Cyclopropylmethyl-8-(1-isopropyl-piperidin-4-yloxy)-4-methyl-3,4-dihydro-2H-pyrazino[1,2-a]indol-1-oneHCID 6846472947%

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), sodium hydride and 1-(bromomethyl)cyclopropane, to give the desired product as a light yellow oil (47%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07786109B2
Source datasetuspto-grants-2010_08
ORD IDord-8c295bbc106f4fd685bdbbc7550f7a3b
Source noteuspto-grants-2010_08