HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1930652Generated: October 29, 2026
Hydrochloric Acid → 2-(Benzyl(2-(4-(2-methyl-1H-imidazol-1-yl)phenylamino)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-4-yl)amino)ethanol
https://huagongshe.com/reaction/1930652
Participants
| Role | Name | HCID | Charge |
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| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | tert-Butyl 4-(benzyl(2-hydroxyethyl)amino)-2-(4-(2-methyl-1H-imidazol-1-yl)phenylamino)-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate | HCID 59333735 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | 2-(Benzyl(2-(4-(2-methyl-1H-imidazol-1-yl)phenylamino)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-4-yl)amino)ethanol | HCID 59333739 | — |
Reaction Steps
tert-Butyl 4-(benzyl(2-hydroxyethyl)amino)-2-(4-(2-methyl-1H-imidazol-1-yl)phenylamino)-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate (121 mg, 0.22 mmol) was dissolved methanol (2 mL). Hydrochloric acid (0.018 mL, 0.22 mmol) was added and the reaction was stirred at 75° C. for 1 h. The solvent was evaporated under reduced pressure and the crude 2-(benzyl(2-(4-(2-methyl-1H-imidazol-1-yl)phenylamino)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-4-yl)amino)ethanol (95 mg, 96%) was used as such in the subsequent step. MS (ES+) m/z 456.3 (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-5ce6cebb8fb94b5d89c93d13bb13941a |
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| Source note | uspto-grants-2012_05 |
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