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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2243754Generated: October 31, 2026

Diisopropylethylamine → HCID 11950624, compound

https://huagongshe.com/reaction/2243754

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
Reactant3-[8-(2,6-Difluorophenyl)-2-(methylthio)-7-oxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl]-4-methylbenzoic acidHCID 11950622—
SolventDichloromethaneHCID 6344—
ProductHCID 11950624HCID 11950624—

Reaction Steps

3-[8-(2,6-difluorophenyl)-2-(methylthio)-7-oxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-yl]-4-methylbenzoic acid (0.59 g, 1.33 mmol) was taken up in CH2Cl2 (75 mL), and diisopropylethylamine (0.7 mL, 4 mmol) was added followed by HATU (0.556 g, 1.46 mmol). Gaseous methyl amine was then bubbled in very slowly until reaction was complete. Aqueous workup followed by chromatography on silica gel (100 g) eluted with CH2Cl2 —90% EtOAc/CH2Cl2 gave the title compound as a white amorphous solid. mp 273-275° C. LC-MS m/z 456 (M+H)+, 1.85 min (ret time).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07674789B2
Source datasetuspto-grants-2010_03
ORD IDord-8c3782dada454e8bbc883b47152905a5
Source noteuspto-grants-2010_03