HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1810941Generated: October 28, 2026
Hydrochloric Acid → HCID 136397815, compound
https://huagongshe.com/reaction/1810941
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | Pemetrexed acid | HCID 135405776 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 136397815 | HCID 136397815 | — |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08362245B2 |
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| Source dataset | uspto-grants-2013_01 |
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| ORD ID | ord-018a4e7b4eb34413aebca07e1c53bc5a |
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| Source note | uspto-grants-2013_01 |
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