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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 269293Generated: October 28, 2026

5-Ethynylpyridin-2-amine → 5-[7-Cyclopropyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyridin-3-ylethynyl]-pyridin-2-ylamine

https://huagongshe.com/reaction/269293

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Ethynylpyridin-2-amineHCID 21954827—
ReactantHCID 67000707HCID 67000707—
Product5-[7-Cyclopropyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyridin-3-ylethynyl]-pyridin-2-ylamineHCID 16738496—

Reaction Steps

The title compound was prepared from 7-cyclopropyl-3-iodo-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyridine (example C.28 step 7) (204 mg, 0.48 mmol) and 5-ethynyl-pyridin-2-ylamine (example D.1) (101 mg, 0.85 mmol) according to general procedure II. Obtained as a yellow solid (40 mg, 20%). MS (ISP) 419.1 [(M+H)+].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07446113B2
Source datasetuspto-grants-2008_11
ORD IDord-fd379a259f9f49f0943b0119fd96771b
Source noteuspto-grants-2008_11