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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1930545Generated: November 2, 2026

Hydrochloric Acid → HCID 46200199, compound

https://huagongshe.com/reaction/1930545

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantAnilineHCID 6115—
ReactantHCID 59333814HCID 59333814—
SolventDimethylformamideHCID 6228—
ProductHCID 46200199HCID 4620019941.3%

Reaction Conditions

Temperature70 °C

Reaction Steps

Aniline (0.032 g, 0.34 mmol) was added to a solution of tert-butyl 2-(3-methoxy-4-(4-methyl-1H-imidazol-1-yl)phenylamino)-4-(trifluoromethylsulfonyloxy)-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate (0.2 g, 0.34 mmol, Example 7a) in DMF (2 mL). The solution was stirred at 70° C. for 1 h. HCl 2M aq (2 ml) was added and the solution heated to 76° C. for 1 h. Solvent was concentrated under reduced pressure and purified on preparative HPLC to give N2-(3-methoxy-4-(4-methyl-1H-imidazol-1-yl)phenyl)-N4-phenyl-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine-2,4-diamine (0.060 g, 41.0%). MS (ESI+)/(ESI−) m/z 428/426

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08188101B2
Source datasetuspto-grants-2012_05
ORD IDord-b5bbb272293f4d9b87d083c3ddf0a18c
Source noteuspto-grants-2012_05