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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 132861Generated: October 26, 2026

Trifluoroacetamidine → 6-(tert-Butoxycarbonyl)-2-(trifluoromethyl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine

https://huagongshe.com/reaction/132861

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetamidineHCID 2776882—
Reactanttert-butyl 3-[(dimethylamino)methylene]-4-oxotetrahydro-1(2H)-pyridinecarboxylateHCID 53395404—
Product6-(tert-Butoxycarbonyl)-2-(trifluoromethyl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidineHCID 69223721—

Reaction Steps

Reaction of tert-butyl 4-oxo-3-(dimethylaminomethylidene)-1-piperidinecarboxylate (1.78 g) from Intermediate 28, Step A with trifluoroacetamidine (0.86 g) according to the procedure described for Intermediate 28, Step B, and purification by flash chromatography (silica gel; 18% ethyl acetate/hexanes as eluant), afforded the title compound as a viscous orange oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07388019B2
Source datasetuspto-grants-2008_06
ORD IDord-d24fb42fea5d4d20997ff53e5906c7c3
Source noteuspto-grants-2008_06