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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1810941Generated: October 28, 2026

Hydrochloric Acid → HCID 136397815, compound

https://huagongshe.com/reaction/1810941

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantPemetrexed acidHCID 135405776—
SolventWaterHCID 962—
ProductHCID 136397815HCID 136397815—

Reaction Conditions

Temperature25 °C

Reaction Steps

A flask was charged with 4-[2-(2-amino-4,7-dihydro-4-oxo-3H-pyrrolo[2,3-d]pyrimidine-5-yl)ethyl] benzoic acid (5.0 g; 93.85% purity HPLC) and water (30 ml), the pH was corrected to about 13 with a 2M sodium hydroxide solution in water, and complete dissolution was observed. The pH was then corrected to about 9 with a 1M hydrochloric acid solution in water, and abundant solid formation was observed. The resulting suspension was stirred at about 25° C. for 1 hour, the solid was collected by filtration and dried in an oven under vacuum to afford 4-[2-(2-amino-4,7-dihydro-4-oxo-3H-pyrrolo[2,3-d]pyrimidine-5-yl)ethyl] benzoic acid sodium salt as a white solid in 99.6% purity (HPLC).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08362245B2
Source datasetuspto-grants-2013_01
ORD IDord-018a4e7b4eb34413aebca07e1c53bc5a
Source noteuspto-grants-2013_01