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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 850322Generated: October 27, 2026

Ethanol → HCID 9933036, compound

https://huagongshe.com/reaction/850322

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantTrimetrexateHCID 5583—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 9933036HCID 9933036—

Reaction Conditions

Temperature100 °C

Reaction Steps

The crude trimetrexate base is dissolved in a mixture of DMF and water, preferably in a v/v ratio of about 10:1. The solution is initially heated to about 100° C., then a polar component such as an alcohol, preferably ethanol, is added as the solution cools to about 55-60° C. where crystallization occurs. The resulting crystals are then washed with ethanol to yield a pure trimetrexate DMF adduct. This trimetrexate-DMF adduct is itself a novel compound and is included within the scope of the invention.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06017922
Source datasetuspto-grants-2000_01
ORD IDord-99f96374e385432898c003fd8fea37fd
Source noteuspto-grants-2000_01