HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1052294Generated: October 31, 2026
Hydrochloric Acid → 4-(2-(3,5-Dimethoxyphenethyl)-5H-pyrrolo[2,3-b]pyrazin-6-yl)picolinic acid
https://huagongshe.com/reaction/1052294
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Water | HCID 962 | — |
| Reactant | Potassium Hydroxide | HCID 14797 | — |
| Reactant | 4-(2-(3,5-Dimethoxyphenethyl)-5-(phenylsulfonyl)-5H-pyrrolo[2,3-b]pyrazin-6-yl)picolinonitrile | HCID 89963691 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | 4-(2-(3,5-Dimethoxyphenethyl)-5H-pyrrolo[2,3-b]pyrazin-6-yl)picolinic acid | HCID 89963589 | — |
Reaction Steps
6.0 M Potassium hydroxide in water (0.2 mL, 1 mmol) was added to a solution of 4-[2-[2-(3,5-dimethoxyphenyl)ethyl]-5-(phenylsulfonyl)-5H-pyrrolo[2,3-b]pyrazin-6-yl]pyridine-2-carbonitrile (50.0 mg, 0.0951 mmol) in THF (0.5 mL) and then the reaction was stirred at 90° C. for 5 hours. The mixture was then acidified to pH=2 by adding conc. HCl and then the solvent was removed to provide the desired crude product which was used in the next step directly. LCMS calculated for C22H21N4O4(M+H)+: m/z=405.2. Found 405.2.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09388185B2 |
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| Source dataset | uspto-grants-2016_07 |
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| ORD ID | ord-3badbe06acf04809b99a9dca9afc8101 |
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| Source note | uspto-grants-2016_07 |
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