Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 415401Generated: October 29, 2026

Diisopropylethylamine → N2-[(1S)-1-(5-fluoropyrimidin-2-yl)ethyl]-N4-(5-methyl-1H-pyrazol-3-yl)-5-(trifluoromethyl)pyrimidine-2,4-diamine

https://huagongshe.com/reaction/415401

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant(S)-1-(5-Fluoropyrimidin-2-YL)ethanamineHCID 55285341—
Reactant2-chloro-N-(5-methyl-1H-pyrazol-3-yl)-5-(trifluoromethyl)pyrimidin-4-amineHCID 58255169—
Solvent1-ButanolHCID 263—
ProductN2-[(1S)-1-(5-fluoropyrimidin-2-yl)ethyl]-N4-(5-methyl-1H-pyrazol-3-yl)-5-(trifluoromethyl)pyrimidine-2,4-diamineHCID 8662483820.8%

Reaction Conditions

Temperature180 °C

Reaction Steps

A microwave reaction vessel was charged with (S)-1-(5-fluoropyrimidin-2-yl)ethanamine (Method 7, 111 mg, 0.63 mmol), 2-chloro-N-(5-methyl-1H-pyrazol-3-yl)-5-(trifluoromethyl)pyrimidin-4-amine (Method 23, 0.50 g, 1.77 mmol), and DIPEA (0.225 mL, 1.26 mmol). Anhydrous n-BuOH (2.1 ml) was added, and the tube was sealed and heated in a microwave reactor at 180° C. for 4 hours.) The solvent was removed under reduced pressure and the residue was purified by Gilson (5-95% MeCN/H2O, 15 minutes) to give the titled compound as solid (50 mg) 1H NMR (300 MHz, DMSO-d6) δ 8.79 (s, 2H) 8.16 (s, 1H) 8.08 (s, 1H) 5.77 (s, 1H) 5.13 (m, 1H) 2.12 (s, 3H) 1.43 (d, 3H); m/z 383.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08088784B2
Source datasetuspto-grants-2012_01
ORD IDord-a89b3b433b434b47906eca476c3b7c09
Source noteuspto-grants-2012_01