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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1930644Generated: October 31, 2026

Acetic Acid → HCID 46199582, compound

https://huagongshe.com/reaction/1930644

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantFormaldehydeHCID 712—
ReactantSodium cyanoborohydrideHCID 5003444—
ReactantHCID 59333763HCID 59333763—
SolventMethanolHCID 887—
ProductHCID 46199582HCID 4619958233.9%

Reaction Steps

(5)-N2-(4-(2-methyl-1H-imidazol-1-yl)phenyl)-N4-((tetrahydrofuran-2-yl)methyl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine-2,4-diamine (55 mg, 0.14 mmol) was dissolved in methanol (3 mL). Acetic acid (7.76 μL, 0.14 mmol) was added followed by formaldehyde (10.10 μL, 0.14 mmol) and sodium cyanoborohydride (8.52 mg, 0.14 mmol). The reaction mixture was stirred for 1 h at room temperature and the solvent was evaporated under reduced pressure. The crude was purified by preparative HPLC yielding (S)-6-methyl-N2-(4-(2-methyl-1H-imidazol-1-yl)phenyl)-N4-((tetrahydrofuran-2-yl)methyl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine-2,4-diamine (19.30 mg, 33.9%). MS (ES+) m/z 417.8 (M−H)−

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08188101B2
Source datasetuspto-grants-2012_05
ORD IDord-3aed23507aa14c248a2270f35909ed0d
Source noteuspto-grants-2012_05