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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1447404Generated: October 30, 2026

Water → HCID 12837764, compound

https://huagongshe.com/reaction/1447404

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 13103372HCID 13103372—
ReactantAluminium lithium hydrideHCID 21226445—
SolventTetrahydrofuranHCID 8028—
ProductHCID 12837764HCID 12837764—

Reaction Steps

To the solution of 780 mg of 2-carbomethoxymethyl-1,3,4,14b-tetrahydro-10H-pyrazino[1,2-a]pyrrolo[2,1-c][1,4]-benzodiazepine in 20 ml of tetrahydrofuran, 150 mg of lithium aluminum hydride are added and the mixture is stirred for 2 days at room temperature. It is combined with 0.15 ml of water, 0.15 ml of 15% aqueous sodium hydroxide and 0.15 ml of water in this order filtered and the filtrate evaporated, to yield the 2-(2-hydroxyethyl)-1,3,4,14b-tetrahydro-10H-pyrazino[1,2-a]pyrrolo[2,1-c][1,4]benzodiazepine, which is converted into its mono-fumarate melting at 187°-189° with decomposition.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04316900
Source datasetuspto-grants-1982_02
ORD IDord-e82f790dcdf94a0f92ee82ec797d3767
Source noteuspto-grants-1982_02