HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1930666Generated: November 1, 2026
Hydrochloric Acid → N4-Ethyl-N2-(4-(oxazol-5-yl)phenyl)-N4-((tetrahydrofuran-2-yl)methyl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine-2,4-diamine
https://huagongshe.com/reaction/1930666
Participants
| Role | Name | HCID | Charge |
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| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | tert-Butyl 4-(ethyl((tetrahydrofuran-2-yl)methyl)amino)-2-(4-(oxazol-5-yl)phenylamino)-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate | HCID 59333809 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | N4-Ethyl-N2-(4-(oxazol-5-yl)phenyl)-N4-((tetrahydrofuran-2-yl)methyl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine-2,4-diamine | HCID 59333759 | — |
Reaction Steps
tert-Butyl 4-(ethyl((tetrahydrofuran-2-yl)methyl)amino)-2-(4-(oxazol-5-yl)phenylamino)-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate (320 mg, 0.61 mmol) was dissolved in methanol (5 mL). Hydrochloric acid (0.019 mL, 0.61 mmol) was added and the reaction mixture was stirred at 80° C. for 1 h. The solvent was evaporated under reduced pressure and the crude was used as such in the subsequent step. MS (ES+) m/z 421.0 (M+H)+
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08188101B2 |
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| Source dataset | uspto-grants-2012_05 |
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| ORD ID | ord-24c9e705f44341d49d6da4089fa54b14 |
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| Source note | uspto-grants-2012_05 |
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