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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 475770Generated: October 29, 2026

Tetrahydrofuran → HCID 58075806, compound

https://huagongshe.com/reaction/475770

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
ReactantDiisopropylethylamineHCID 81531—
Reactant2,4-Dichloro-7-(4-fluorophenyl)-6,7-dihydro-5H-cyclopenta[D]pyrimidineHCID 58075424—
ProductHCID 58075806HCID 5807580663.1%

Reaction Conditions

Temperature60 °C

Reaction Steps

To a solution of 2,4-dichloro-7-(4-fluorophenyl)-6,7-dihydro-5H-cyclopenta[d]pyrimidine (Preparation H) (100 mg, 0.353 mmol) in THF (1766 μL) was added (R)-1-cyclopropylethanamine, HCl (172 mg, 1.413 mmol) and DIEA (493 μL, 2.83 mmol). The mixture was stirred at 60° C. for 5 days. The crude product was purified by Prep-HPLC get 2-chloro-N—((R)-1-cyclopropylethyl)-7-(4-fluorophenyl)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-amine (Preparation Haa) (74 mg, 0.223 mmol, 63.1% yield). LC-MS (M+H)+=332.3. 1H NMR (500 MHz, CDCl3) δ ppm 7.06-7.18 (m, 2H) 7.00 (td, J=8.70, 1.53 Hz, 2H) 4.65 (d, J=5.80 Hz, 1H) 4.26 (t, J=7.17 Hz, 1H) 3.63-3.79 (m, 1H) 2.62-2.82 (m, 3H) 2.04-2.16 (m, 1H) 1.26-1.40 (m, 3H) 0.94 (qd, J=8.24, 3.36 Hz, 1H) 0.42-0.62 (m, 3H) 0.24-0.40 (m, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08637525B2
Source datasetuspto-grants-2014_01
ORD IDord-5ae5547ec3514697b5608c7f352c67dc
Source noteuspto-grants-2014_01