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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1930709Generated: October 31, 2026

Hydrochloric Acid → 4-Benzyl-N-(3-methoxy-4-(4-methyl-1H-imidazol-1-yl)phenyl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-2-amine

https://huagongshe.com/reaction/1930709

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactanttert-Butyl 4-benzyl-2-(3-methoxy-4-(4-methyl-1H-imidazol-1-yl)phenylamino)-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylateHCID 59333725—
SolventMethanolHCID 887—
Product4-Benzyl-N-(3-methoxy-4-(4-methyl-1H-imidazol-1-yl)phenyl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-2-amineHCID 59333698—

Reaction Conditions

Temperature80 °C

Reaction Steps

tert-Butyl 4-benzyl-2-(3-methoxy-4-(4-methyl-1H-imidazol-1-yl)phenylamino)-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate (1.0 g, 1.90 mmol) was dissolved in methanol (10 mL). Hydrochloric acid (0.156 mL, 1.90 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 in the subsequent step as such. MS (ES+) m/z 427.0 (M+H)+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08188101B2
Source datasetuspto-grants-2012_05
ORD IDord-7d2ef71a0846452b90be275fcacc815a
Source noteuspto-grants-2012_05